A10 Networks (ATEN) 10-Q 1 Aug 23 2023 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2023	Jul. 26, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 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		74,110,542
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001580808
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 111,181	$ 67,971
Marketable securities	42,730	83,018
Accounts receivable, net of allowances of $223 and $32, respectively	69,171	72,928
Inventory	20,438	19,693
Prepaid expenses and other current assets	12,945	13,381
Total current assets	256,465	256,991
Property and equipment, net	25,210	19,743
Goodwill	1,307	1,307
Deferred tax assets, net	59,871	63,183
Other non-current assets	25,379	27,881
Total assets	368,232	369,105
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	6,399	6,725
Accrued liabilities	22,656	37,183
Deferred revenue	78,023	74,340
Total current liabilities	107,078	118,248
Deferred revenue, non-current	53,590	52,652
Other non-current liabilities	14,626	17,193
Total liabilities	175,294	188,093
Commitments and contingencies (Note 2 and Note 5)
Stockholders' equity:
Common stock, $0.00001 par value: 500,000 shares authorized; 87,904 and 87,123 shares issued and 74,083 and 73,738 shares outstanding, respectively	1	1
Treasury stock, at cost: 13,821 and 13,384 shares, respectively	(141,164)	(134,934)
Additional paid-in-capital	477,111	466,927
Dividends paid	(28,682)	(19,802)
Accumulated other comprehensive income	542	(726)
Accumulated deficit	(114,870)	(130,454)
Total stockholders' equity	192,938	181,012
Total liabilities and stockholders' equity	$ 368,232	$ 369,105

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 223	$ 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, Common, Shares	13,821,000	13,384,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue:
Total revenue	$ 65,817	$ 67,973	$ 123,508	$ 130,645
Cost of revenue:
Total cost of revenue	13,463	13,485	23,679	26,324
Gross profit	52,354	54,488	99,829	104,321
Operating expenses:
Sales and marketing	20,868	21,773	43,202	44,555
Research and development	13,965	14,235	25,630	27,122
General and administrative	5,255	5,337	12,564	11,499
Total operating expenses	40,088	41,345	81,396	83,176
Income from operations	12,266	13,143	18,433	21,145
Non-operating income (expense), net:
Other income (expense), net	662	184	1,635	304
Other Nonoperating Income (Expense)	1,884	301	(334)	(332)
Non-operating income (expense), net	2,546	485	1,301	(28)
Income (Loss) Attributable to Parent, before Tax	14,812	13,628	19,734	21,117
Provision for income taxes	3,186	3,212	4,150	4,352
Net income	$ 11,626	$ 10,416	$ 15,584	$ 16,765
Net income per share:
Basic	$ 0.16	$ 0.14	$ 0.21	$ 0.22
Diluted	$ 0.15	$ 0.13	$ 0.21	$ 0.21
Weighted-average shares used in computing net income per share:
Basic	74,017	75,893	74,009	76,343
Diluted	75,428	78,306	75,512	78,809
Products
Revenue:
Total revenue	$ 39,090	$ 41,475	$ 70,272	$ 78,520
Cost of revenue:
Total cost of revenue	9,436	9,518	15,519	18,151
Services
Revenue:
Total revenue	26,727	26,498	53,236	52,125
Cost of revenue:
Total cost of revenue	$ 4,027	$ 3,967	$ 8,160	$ 8,173

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 11,626	$ 10,416	$ 15,584	$ 16,765
Other comprehensive income (expense), net of tax:
Unrealized gain (loss) on marketable securities	593	(201)	1,121	(977)
Unrealized gain on cash flow hedge	112	0	147	0
Comprehensive income	$ 12,331	$ 10,215	$ 16,852	$ 15,788

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	Dividends Declared	Treasury Stock, Common
Beginning balance at Dec. 31, 2021	$ 208,888	$ 1	$ 446,035	$ (229)	$ (177,362)	$ (3,880)	$ (55,677)
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)		909
Common stock issued under employee equity incentive plans	0		2,970
Unrealized gain (loss) on marketable securities	(977)			(977)
Net income	16,765				16,765
Unrealized gain on cash flow hedge	0
Ending balance (in shares) at Jun. 30, 2022		75,962
Ending balance at Jun. 30, 2022	194,759	$ 1	455,539	(1,206)	(160,597)	(11,543)	$ (87,435)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash						(7,663)
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition			6,534
Stock Repurchased During Period, Value	$ (31,758)
Treasury Stock, Shares, Acquired	(2,400)						(2,370)
Beginning balance at Mar. 31, 2022	$ 185,977	$ 1	449,742	(1,005)	(171,013)	(7,749)	$ (83,999)
Beginning balance (in shares) at Mar. 31, 2022		75,701
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee equity incentive plans (in shares)		509
Common stock issued under employee equity incentive plans	0		2,807
Unrealized gain (loss) on marketable securities	(201)			(201)
Net income	10,416				10,416
Unrealized gain on cash flow hedge	0
Ending balance (in shares) at Jun. 30, 2022		75,962
Ending balance at Jun. 30, 2022	194,759	$ 1	455,539	(1,206)	(160,597)	(11,543)	$ (87,435)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash						(3,794)
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition			2,990
Stock Repurchased During Period, Value	(3,436)
Treasury Stock, Shares, Acquired							(248)
Beginning balance at Dec. 31, 2022	181,012	$ 1	466,927	(726)	(130,454)	(19,802)	$ (134,934)
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)		781
Common stock issued under employee equity incentive plans	0		2,559
Unrealized gain (loss) on marketable securities	1,121			1,121
Net income	15,584				15,584
Unrealized gain on cash flow hedge	147
Ending balance (in shares) at Jun. 30, 2023		74,083
Ending balance at Jun. 30, 2023	192,938	$ 1	477,111	542	(114,870)	(28,682)	$ (141,164)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash						(8,880)
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition			7,625
Stock Repurchased During Period, Value	$ (6,230)
Treasury Stock, Shares, Acquired	(437)						(436)
Beginning balance at Mar. 31, 2023	$ 185,501	$ 1	471,341	(163)	(126,496)	(24,248)	$ (134,934)
Beginning balance (in shares) at Mar. 31, 2023		74,197
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee equity incentive plans (in shares)		322
Common stock issued under employee equity incentive plans	0		2,086
Unrealized gain (loss) on marketable securities	593			593
Net income	11,626				11,626
Unrealized gain on cash flow hedge	112
Ending balance (in shares) at Jun. 30, 2023		74,083
Ending balance at Jun. 30, 2023	192,938	$ 1	477,111	$ 542	$ (114,870)	(28,682)	$ (141,164)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash						$ (4,434)
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition			$ 3,684
Stock Repurchased During Period, Value	$ (6,230)
Treasury Stock, Shares, Acquired							(436)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net income	$ 15,584	$ 16,765
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,307	3,712
Stock-based compensation	7,214	6,313
Other non-cash items	(270)	113
Changes in operating assets and liabilities:
Accounts receivable	3,698	(5,580)
Inventory	(1,705)	(31)
Prepaid expenses and other assets	3,827	(2,163)
Accounts payable	(1,460)	(1,283)
Accrued liabilities	(17,094)	655
Deferred revenue	4,621	6,239
Net cash provided by operating activities	18,722	24,740
Cash flows from investing activities:
Proceeds from sales of marketable securities	42,252	4,550
Proceeds from maturities of marketable securities	44,532	39,148
Purchases of marketable securities	(44,680)	(21,649)
Purchases of property and equipment	(5,065)	(5,021)
Net cash provided by investing activities	37,039	17,028
Cash flows from financing activities:
Proceeds from issuance of common stock under employee equity incentive plans	2,559	2,970
Repurchase of common stock	(6,230)	(31,758)
Payments for dividends	(8,880)	(7,663)
Net cash used in financing activities	(12,551)	(36,451)
Net increase in cash and cash equivalents	43,210	5,317
Cash and cash equivalents—beginning of period	67,971	78,925
Cash and cash equivalents—end of period	111,181	84,242
Non-cash investing and financing activities:
Transfers between inventory and property and equipment	959	567
Purchases of property and equipment included in accounts payable	$ 1,134	$ 1

Description of Business and Sum

Description of Business and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 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. 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). The EMEA region comprises Europe, Middle East and Africa. We believe this vertical and geographic view aligns with how we manage the business and maps our product portfolio to customer verticals. 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 June 30, 2023, we have sold our products to more than 8,200 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 and six months ended June 30, 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 June 30, Six Months Ended June 30, Customers 2023 2022 2023 2022 Customer A (an end-customer) 25% 11% 20% 10% Customer B (an end-customer) * 20% * 18% * represents less than 10% of total revenue As of June 30, 2023, one customer accounted for 33% 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 and six months ended June 30, 2023.

Leases

Leases	6 Months Ended
	Jun. 30, 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 June 30, 2023 (in thousands): As of June 30, 2023 Operating leases Right-of-use assets: Other non-current assets $ 18,794 Total right-of-use assets $ 18,794 Lease liabilities: Accrued liabilities $ 4,861 Other non-current liabilities 14,304 Total operating lease liabilities $ 19,165 The aggregate future lease payments for non-cancelable operating leases as of June 30, 2023 were as follows (in thousands): Remainder of 2023 $ 2,683 2024 5,446 2025 4,953 2026 4,892 2027 2,441 Thereafter — Total lease payments 20,415 Less: imputed interest (1,250) Present value of lease liabilities $ 19,165 The components of lease costs were as follows (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Operating lease costs $ 1,094 $ 1,092 $ 2,203 $ 2,163 Short-term lease costs 123 161 250 291 Total lease costs $ 1,217 $ 1,253 $ 2,453 $ 2,454 Average lease terms and discount rates for the Company’s operating leases were as follows: Three Months Ended June 30, 2023 Weighted-average remaining term (years) 3.84 Weighted-average discount rate 3.2% Supplemental cash flow information for the Company’s operating leases were as follows (in thousands): Three Months Ended June 30, 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 2,661 Right-of-use assets obtained in exchange for new lease liabilities $ —

Marketable Securities and Fair

Marketable Securities and Fair Value Measurements	6 Months Ended
	Jun. 30, 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 June 30, 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 $ 1,983 $ — $ (3) $ 1,980 $ 35,137 $ — $ (550) $ 34,587 U.S. Treasury and agency securities 39,858 21 (99) 39,780 28,627 — (292) 28,335 Commercial paper 950 20 — 970 11,859 — — 11,859 Asset-backed securities — — — — 8,331 — (94) 8,237 Total $ 42,791 $ 41 $ (102) $ 42,730 $ 83,954 $ — $ (936) $ 83,018 During the three and six months ended June 30, 2023, we reclassified $0.3 million of expense to earnings from accumulated other comprehensive income related to unrealized losses. During the three and six months ended June 30, 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 June 30, 2023 (in thousands): As of June 30, 2023 Amortized Cost Fair Value Mature in less than 1 year $ 33,356 $ 33,371 Mature in 1 - 3 years 9,435 9,359 Total $ 42,791 $ 42,730 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 June 30, 2023 consisted of the following (in thousands): Less Than 12 Months 12 Months or More Total As of June 30, 2023 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate securities $ 1,980 $ (3) $ — $ — $ 1,980 $ (3) U.S. Treasury and agency securities 4,264 (99) — — 4,264 (99) $ 6,244 $ (102) $ — $ — $ 6,244 $ (102) 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 and six months ended June 30, 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 June 30, 2023 As of December 31, 2022 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash $ 55,010 $ — $ — $ 55,010 $ 54,336 $ — $ — $ 54,336 Cash equivalents 56,171 — — 56,171 13,635 — — 13,635 Corporate securities — 1,980 — 1,980 — 34,587 — 34,587 U.S. Treasury and agency securities — 39,780 — 39,780 — 28,335 — 28,335 Commercial paper — 970 — 970 — 11,859 — 11,859 Asset-backed securities — — — — — 8,237 — 8,237 Total $ 111,181 $ 42,730 $ — $ 153,911 $ 67,971 $ 83,018 $ — $ 150,989 There were no transfers between Level 1 and Level 2 fair value measurement categories during the three and six months ended June 30, 2023 and 2022.

Condensed Consolidated Financia

Condensed Consolidated Financial Statement Details	6 Months Ended
	Jun. 30, 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 June 30, 2023 As of December 31, 2022 Raw materials $ 13,179 $ 12,771 Finished goods 7,259 6,922 Total inventory $ 20,438 $ 19,693 Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consisted of the following (in thousands): As of June 30, 2023 As of December 31, 2022 Prepaid expenses $ 5,315 $ 5,310 Deferred contract acquisition costs 6,242 6,144 Other 1,388 1,927 Total prepaid expenses and other current assets $ 12,945 $ 13,381 Property and Equipment, Net Property and equipment, net, consisted of the following (in thousands): Useful Life As of June 30, 2023 As of December 31, 2022 (in years) Equipment 1 - 5 $ 29,586 $ 27,028 Software (1) 1 - 6 2,785 2,537 Furniture and fixtures 1 - 7 500 503 Leasehold improvements Lease term 3,233 3,267 Construction in process 12,618 9,152 Property and equipment, gross 48,722 42,487 Less: accumulated depreciation (23,512) (22,744) Property and equipment, net $ 25,210 $ 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 $1.4 million and internally developed software totaled $1.4 million as of June 30, 2023. Acquired software totaled $1.1 million and internally developed software totaled $1.4 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 $1.0 million and $0.7 million for the three months ended June 30, 2023 and 2022, respectively, and was $2.0 million and $1.3 million for the six months ended June 30, 2023 and 2022, respectively. Accrued Liabilities Accrued liabilities consisted of the following (in thousands): As of June 30, 2023 As of December 31, 2022 Accrued compensation and benefits $ 6,597 $ 19,832 Accrued tax liabilities 1,864 1,635 Lease liability 4,861 4,792 Other 9,334 10,924 Total accrued liabilities $ 22,656 $ 37,183 Deferred Revenue Deferred revenue consisted of the following (in thousands): As of June 30, 2023 As of December 31, 2022 Deferred revenue: Products $ 10,870 $ 7,782 Services 120,743 119,210 Total deferred revenue 131,613 126,992 Less: current portion (78,023) (74,340) Non-current portion $ 53,590 $ 52,652

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 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 June 30, 2023. Rent expense was $1.2 million and $1.3 million for the three months ended June 30, 2023 and 2022, respectively, and was $2.5 million for both of the six months ended June 30, 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 $19.8 million as of June 30, 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	6 Months Ended
	Jun. 30, 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 and 2023 Stock Incentive Plan The 2014 Equity Incentive Plan (the “2014 Plan”) provided 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. 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 were made under the 2014 Plan after March 29, 2023. The 2023 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 issuance under the 2023 Plan is (x) 5,600,000 shares of common stock (the “Initial Reserve”), plus (y) the sum of any outstanding stock awards granted under the 2014 Plan that following March 29, 2023 which are either (i) not issued because such award or portion thereof is forfeited or terminated for any reason before being exercised or settled or (ii) subject to vesting restrictions and are subsequently forfeited, up to a maximum of 3,475,099 shares (the “2014 Returning Shares”). As of June 30, 2023, we had 5,600,236 shares available for future grant under the 2023 Plan. 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 June 30, 2023, the Company had 968,943 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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Stock-based compensation by type of award: Stock awards $ 3,204 $ 2,535 6,648 5,635 Employee stock purchase rights 268 326 566 678 $ 3,472 $ 2,861 $ 7,214 $ 6,313 Stock-based compensation by category of expense: Cost of revenue $ 404 $ 323 $ 815 $ 721 Sales and marketing 891 1,043 2,057 2,142 Research and development 807 840 1,637 1,629 General and administrative 1,370 655 2,705 1,821 $ 3,472 $ 2,861 $ 7,214 $ 6,313 As of June 30, 2023, the Company had $27.6 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 2.21 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 (117) 6.41 Outstanding as of June 30, 2023 162 6.72 1.18 $ 1,275 Vested and exercisable as of June 30, 2023 162 $ 6.72 1.18 $ 1,275 As of June 30, 2023, the aggregate intrinsic value represents the excess of the closing price of our common stock of $14.59 over the exercise price of the outstanding in-the-money options. The intrinsic value of options exercised was $0.3 million and $1.5 million during the three months ended June 30, 2023 and 2022, respectively and was $1.0 million and was $1.7 million during the six months ended June 30, 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 June 30, 2023, there were 2,337,313 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 668 13.47 Released (521) 8.47 Canceled (150) 12.24 Nonvested as of June 30, 2023 3,215 $ 12.00 1.57 $ 46,908 The aggregate fair value of stock awards released was $1.4 million and $1.5 million for the three months ended June 30, 2023 and 2022, respectively, and was $4.4 million and $3.9 million for the six months ended June 30, 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 six months ended June 30, 2022, the Company repurchased 2.4 million shares for a total cost of $31.8 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 June 30, 2023, 437 thousand shares had been repurchased under the 2022 Program for a total cost of $6.2 million.

Net Income Per Share

Net Income Per Share	6 Months Ended
	Jun. 30, 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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Basic and diluted net income per share Numerator: Net income $ 11,626 $ 10,416 $ 15,584 $ 16,765 Denominator: Weighted-average shares outstanding - basic 74,017 75,893 74,009 76,343 Effect of dilutive potential common shares from stock options, stock awards and employee stock purchase plan 1,411 2,413 1,503 2,466 Weighted-average shares outstanding - diluted 75,428 78,306 75,512 78,809 Net income per share: Basic $ 0.16 $ 0.14 $ 0.21 $ 0.22 Diluted $ 0.15 $ 0.13 $ 0.21 $ 0.21 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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Stock options, restricted stock units and employee stock purchase rights 89 56 63 225

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We recorded an income tax provision of $3.2 million for both of the three months ended June 30, 2023 and 2022, respectively. We recorded an income tax provision of $4.2 million and $4.4 million for the six months ended June 30, 2023 and 2022, respectively. The Company’s income tax provision for the three and six months ended June 30, 2023 and 2022 primarily consisted of U.S. federal and state taxes. We had $7.2 million of unrecognized tax benefits as of June 30, 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.

Geographic Information

Geographic Information	6 Months Ended
	Jun. 30, 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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Americas $ 36,921 $ 38,553 $ 66,877 $ 71,511 United States 31,840 33,756 55,961 62,930 Americas-other 5,081 4,797 10,916 8,581 APJ 21,982 21,614 37,742 39,403 APAC 9,606 7,964 15,037 14,213 Japan 12,376 13,650 22,705 25,190 EMEA 6,914 7,806 18,889 19,731 Total revenue $ 65,817 $ 67,973 $ 123,508 $ 130,645 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 June 30, 2023 As of December 31, 2022 Americas $ 41,019 $ 37,420 Japan 1,510 1,852 Other 1,475 1,668 Total $ 44,004 $ 40,940

Revenue Revenue

Revenue Revenue	6 Months Ended
	Jun. 30, 2023
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Contract Balances The following table reflects contract balances with customers (in thousands): As of June 30, 2023 As of December 31, 2022 Accounts receivable, net $ 69,171 $ 72,928 Deferred revenue, current 78,023 74,340 Deferred revenue, non-current 53,590 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 June 30, 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 $26.1 million and $19.6 million during the three months ended June 30, 2023 and 2022, respectively, related to deferred revenues at the beginning of the respective periods. We recognized revenue of $51.3 million and $44.2 million during the six months ended June 30, 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 June 30, 2023, the current and non-current portions of deferred contract acquisition costs were $6.2 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 $1.5 million and $2.1 million for the three months ended June 30, 2023 and 2022, respectively, and was $3.4 million and $4.2 million for the six months ended June 30, 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 and six months ended June 30, 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 June 30, 2023 Within 1 year $ 78,023 Next 2 to 3 years 44,010 Thereafter 9,580 Total $ 131,613

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn July 26, 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 September 1, 2023 to stockholders of record on August 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)	6 Months Ended
	Jun. 30, 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 and six months ended June 30, 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)	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Revenue as Percentage of Total Revenue	Three Months Ended June 30, Six Months Ended June 30, Customers 2023 2022 2023 2022 Customer A (an end-customer) 25% 11% 20% 10% Customer B (an end-customer) * 20% * 18% * represents less than 10% of total revenue

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2023
Leases [Abstract]
Assets And Liabilities,	The table below presents the Company’s right-of-use assets and lease liabilities as of June 30, 2023 (in thousands): As of June 30, 2023 Operating leases Right-of-use assets: Other non-current assets $ 18,794 Total right-of-use assets $ 18,794 Lease liabilities: Accrued liabilities $ 4,861 Other non-current liabilities 14,304 Total operating lease liabilities $ 19,165
Lease Payments	The aggregate future lease payments for non-cancelable operating leases as of June 30, 2023 were as follows (in thousands): Remainder of 2023 $ 2,683 2024 5,446 2025 4,953 2026 4,892 2027 2,441 Thereafter — Total lease payments 20,415 Less: imputed interest (1,250) Present value of lease liabilities $ 19,165
Lease Costs	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Operating lease costs $ 1,094 $ 1,092 $ 2,203 $ 2,163 Short-term lease costs 123 161 250 291 Total lease costs $ 1,217 $ 1,253 $ 2,453 $ 2,454 Average lease terms and discount rates for the Company’s operating leases were as follows: Three Months Ended June 30, 2023 Weighted-average remaining term (years) 3.84 Weighted-average discount rate 3.2% Supplemental cash flow information for the Company’s operating leases were as follows (in thousands): Three Months Ended June 30, 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 2,661 Right-of-use assets obtained in exchange for new lease liabilities $ —

Marketable Securities and Fai_2

Marketable Securities and Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Available-for-sale Securities	Marketable securities, classified as available-for-sale, consisted of the following (in thousands): As of June 30, 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 $ 1,983 $ — $ (3) $ 1,980 $ 35,137 $ — $ (550) $ 34,587 U.S. Treasury and agency securities 39,858 21 (99) 39,780 28,627 — (292) 28,335 Commercial paper 950 20 — 970 11,859 — — 11,859 Asset-backed securities — — — — 8,331 — (94) 8,237 Total $ 42,791 $ 41 $ (102) $ 42,730 $ 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 June 30, 2023 (in thousands): As of June 30, 2023 Amortized Cost Fair Value Mature in less than 1 year $ 33,356 $ 33,371 Mature in 1 - 3 years 9,435 9,359 Total $ 42,791 $ 42,730
Schedule of gross unrealized losses	Marketable securities in an unrealized loss position as of June 30, 2023 consisted of the following (in thousands): Less Than 12 Months 12 Months or More Total As of June 30, 2023 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate securities $ 1,980 $ (3) $ — $ — $ 1,980 $ (3) U.S. Treasury and agency securities 4,264 (99) — — 4,264 (99) $ 6,244 $ (102) $ — $ — $ 6,244 $ (102) 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 June 30, 2023 As of December 31, 2022 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash $ 55,010 $ — $ — $ 55,010 $ 54,336 $ — $ — $ 54,336 Cash equivalents 56,171 — — 56,171 13,635 — — 13,635 Corporate securities — 1,980 — 1,980 — 34,587 — 34,587 U.S. Treasury and agency securities — 39,780 — 39,780 — 28,335 — 28,335 Commercial paper — 970 — 970 — 11,859 — 11,859 Asset-backed securities — — — — — 8,237 — 8,237 Total $ 111,181 $ 42,730 $ — $ 153,911 $ 67,971 $ 83,018 $ — $ 150,989

Condensed Consolidated Financ_2

Condensed Consolidated Financial Statement Details (Tables)	6 Months Ended
	Jun. 30, 2023
Property, Plant and Equipment [Abstract]
Schedule of Inventory	Inventory consisted of the following (in thousands): As of June 30, 2023 As of December 31, 2022 Raw materials $ 13,179 $ 12,771 Finished goods 7,259 6,922 Total inventory $ 20,438 $ 19,693
Prepaid Expenses and Other Current Assets	Prepaid expenses and other current assets consisted of the following (in thousands): As of June 30, 2023 As of December 31, 2022 Prepaid expenses $ 5,315 $ 5,310 Deferred contract acquisition costs 6,242 6,144 Other 1,388 1,927 Total prepaid expenses and other current assets $ 12,945 $ 13,381
Schedule of Property and Equipment, Net	Property and equipment, net, consisted of the following (in thousands): Useful Life As of June 30, 2023 As of December 31, 2022 (in years) Equipment 1 - 5 $ 29,586 $ 27,028 Software (1) 1 - 6 2,785 2,537 Furniture and fixtures 1 - 7 500 503 Leasehold improvements Lease term 3,233 3,267 Construction in process 12,618 9,152 Property and equipment, gross 48,722 42,487 Less: accumulated depreciation (23,512) (22,744) Property and equipment, net $ 25,210 $ 19,743
Schedule of Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): As of June 30, 2023 As of December 31, 2022 Accrued compensation and benefits $ 6,597 $ 19,832 Accrued tax liabilities 1,864 1,635 Lease liability 4,861 4,792 Other 9,334 10,924 Total accrued liabilities $ 22,656 $ 37,183
Schedule of Deferred Revenue	Deferred revenue consisted of the following (in thousands): As of June 30, 2023 As of December 31, 2022 Deferred revenue: Products $ 10,870 $ 7,782 Services 120,743 119,210 Total deferred revenue 131,613 126,992 Less: current portion (78,023) (74,340) Non-current portion $ 53,590 $ 52,652 The following table reflects contract balances with customers (in thousands): As of June 30, 2023 As of December 31, 2022 Accounts receivable, net $ 69,171 $ 72,928 Deferred revenue, current 78,023 74,340 Deferred revenue, non-current 53,590 52,652

Equity Incentive Plans and St_2

Equity Incentive Plans and Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Stock-based compensation by type of award: Stock awards $ 3,204 $ 2,535 6,648 5,635 Employee stock purchase rights 268 326 566 678 $ 3,472 $ 2,861 $ 7,214 $ 6,313 Stock-based compensation by category of expense: Cost of revenue $ 404 $ 323 $ 815 $ 721 Sales and marketing 891 1,043 2,057 2,142 Research and development 807 840 1,637 1,629 General and administrative 1,370 655 2,705 1,821 $ 3,472 $ 2,861 $ 7,214 $ 6,313
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 (117) 6.41 Outstanding as of June 30, 2023 162 6.72 1.18 $ 1,275 Vested and exercisable as of June 30, 2023 162 $ 6.72 1.18 $ 1,275
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 668 13.47 Released (521) 8.47 Canceled (150) 12.24 Nonvested as of June 30, 2023 3,215 $ 12.00 1.57 $ 46,908

Net Income Per Share (Tables)

Net Income Per Share (Tables)	6 Months Ended
	Jun. 30, 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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Basic and diluted net income per share Numerator: Net income $ 11,626 $ 10,416 $ 15,584 $ 16,765 Denominator: Weighted-average shares outstanding - basic 74,017 75,893 74,009 76,343 Effect of dilutive potential common shares from stock options, stock awards and employee stock purchase plan 1,411 2,413 1,503 2,466 Weighted-average shares outstanding - diluted 75,428 78,306 75,512 78,809 Net income per share: Basic $ 0.16 $ 0.14 $ 0.21 $ 0.22 Diluted $ 0.15 $ 0.13 $ 0.21 $ 0.21
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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Stock options, restricted stock units and employee stock purchase rights 89 56 63 225

Geographic Information (Tables)

Geographic Information (Tables)	6 Months Ended
	Jun. 30, 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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Americas $ 36,921 $ 38,553 $ 66,877 $ 71,511 United States 31,840 33,756 55,961 62,930 Americas-other 5,081 4,797 10,916 8,581 APJ 21,982 21,614 37,742 39,403 APAC 9,606 7,964 15,037 14,213 Japan 12,376 13,650 22,705 25,190 EMEA 6,914 7,806 18,889 19,731 Total revenue $ 65,817 $ 67,973 $ 123,508 $ 130,645
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 June 30, 2023 As of December 31, 2022 Americas $ 41,019 $ 37,420 Japan 1,510 1,852 Other 1,475 1,668 Total $ 44,004 $ 40,940

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2023
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset and Liability	Deferred revenue consisted of the following (in thousands): As of June 30, 2023 As of December 31, 2022 Deferred revenue: Products $ 10,870 $ 7,782 Services 120,743 119,210 Total deferred revenue 131,613 126,992 Less: current portion (78,023) (74,340) Non-current portion $ 53,590 $ 52,652 The following table reflects contract balances with customers (in thousands): As of June 30, 2023 As of December 31, 2022 Accounts receivable, net $ 69,171 $ 72,928 Deferred revenue, current 78,023 74,340 Deferred revenue, non-current 53,590 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 June 30, 2023 Within 1 year $ 78,023 Next 2 to 3 years 44,010 Thereafter 9,580 Total $ 131,613

Description of Business and S_4

Description of Business and Summary of Significant Accounting Policies - Concentration Risk (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023 solution	Jun. 30, 2022	Jun. 30, 2023 tool	Jun. 30, 2022	Dec. 31, 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)	25%	11%	20%	10%
Customer A | Accounts Receivable | Customer Concentration Risk
Entity Wide Revenue Major Customer [Line Items]
Percentage representation of significant customers (percent)	33%				21%
Customer B | Revenue | Customer Concentration Risk
Entity Wide Revenue Major Customer [Line Items]
Percentage representation of significant customers (percent)		20%		18%

Leases - Assets and Liabilities

Leases - Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Leases [Abstract]
Total right-of-use assets	$ 18,794
Accrued liabilities	4,861	$ 4,792
Other non-current liabilities	14,304
Total operating lease liabilities	$ 19,165

Leases - Lease Liabilities (Det

Leases - Lease Liabilities (Details) $ in Thousands	Jun. 30, 2023 USD ($)
Leases [Abstract]
Remainder of 2023	$ 2,683
2021	5,446
2022	4,953
2023	4,892
2024	2,441
Thereafter	0
Total lease payments	20,415
Less: imputed interest	(1,250)
Present value of lease liabilities	$ 19,165

Leases - Lease Costs (Details)

Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Leases [Abstract]
Operating lease costs	$ 1,094	$ 1,092	$ 2,203	$ 2,163
Short-term lease costs	123	161	250	291
Total lease costs	$ 1,217	$ 1,253	$ 2,453	$ 2,454
Weighted-average remaining term (years)	3 years 10 months 2 days		3 years 10 months 2 days
Weighted-average discount rate	3.20%		3.20%
Operating cash flows from operating leases			$ 2,661
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	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 42,791	$ 42,791	$ 83,954
Gross Unrealized Gains	41	41	0
Gross Unrealized Losses	(102)	(102)	(936)
Fair Value	42,730	42,730	83,018
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	300	300
Corporate securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,983	1,983	35,137
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(3)	(3)	(550)
Fair Value	1,980	1,980	34,587
U.S. Treasury and agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	39,858	39,858	28,627
Gross Unrealized Gains	21	21	0
Gross Unrealized Losses	(99)	(99)	(292)
Fair Value	39,780	39,780	28,335
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	950	950	11,859
Gross Unrealized Gains	20	20	0
Gross Unrealized Losses	0	0	0
Fair Value	970	970	11,859
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	0	0	8,331
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	0	0	(94)
Fair Value	$ 0	$ 0	$ 8,237

Marketable Securities and Fai_4

Marketable Securities and Fair Value Measurements - Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Amortized Cost
Less than 1 year	$ 33,356
Mature in 1 - 3 years	9,435
Amortized Cost	42,791	$ 83,954
Fair Value
Less than 1 year	33,371
Mature in 1 - 3 years	9,359
Fair Value	$ 42,730	$ 83,018

Marketable Securities and Fai_5

Marketable Securities and Fair Value Measurements - Securities in Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Fair Value, Less Than 12 Months	$ 6,244	$ 30,715
Fair Value, 12 Months or More	0	38,544
Fair Value, Total	6,244	69,259
Gross Unrealized Losses, Less Than 12 Months	(102)	(301)
Gross Unrealized Losses,12 Months or More	0	(635)
Gross Unrealized Losses	(102)	(936)
Corporate securities
Debt Securities, Available-for-sale [Line Items]
Fair Value, Less Than 12 Months	1,980	7,610
Fair Value, 12 Months or More	0	26,977
Fair Value, Total	1,980	34,587
Gross Unrealized Losses, Less Than 12 Months	(3)	(162)
Gross Unrealized Losses,12 Months or More	0	(388)
Gross Unrealized Losses	(3)	(550)
U.S. Treasury and agency securities
Debt Securities, Available-for-sale [Line Items]
Fair Value, Less Than 12 Months	4,264	14,868
Fair Value, 12 Months or More	0	11,567
Fair Value, Total	4,264	26,435
Gross Unrealized Losses, Less Than 12 Months	(99)	(45)
Gross Unrealized Losses,12 Months or More	0	(247)
Gross Unrealized Losses	$ (99)	(292)
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Fair Value, Less Than 12 Months		8,237
Fair Value, 12 Months or More		0
Fair Value, Total		8,237
Gross Unrealized Losses, Less Than 12 Months		(4)
Gross Unrealized Losses,12 Months or More		0
Gross Unrealized Losses		$ (94)

Marketable Securities and Fai_6

Marketable Securities and Fair Value Measurements - Schedule of Fair Value of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financial Assets
Marketable Securities	$ 42,730	$ 83,018
Level 1
Financial Assets
Total	111,181	67,971
Level 2
Financial Assets
Total	42,730	83,018
Fair Value, Inputs, Level 1, 2 and 3
Financial Assets
Total	153,911	150,989
Cash
Financial Assets
Cash and Cash Equivalents	55,010	54,336
Cash | Level 1
Financial Assets
Cash and Cash Equivalents	55,010	54,336
Cash equivalents
Financial Assets
Cash and Cash Equivalents	56,171	13,635
Cash equivalents | Level 1
Financial Assets
Cash and Cash Equivalents	56,171	13,635
Corporate securities
Financial Assets
Marketable Securities	1,980	34,587
Corporate securities | Level 2
Financial Assets
Marketable Securities	1,980	34,587
U.S. Treasury and agency securities
Financial Assets
Marketable Securities	39,780	28,335
U.S. Treasury and agency securities | Level 2
Financial Assets
Marketable Securities	39,780	28,335
Commercial paper
Financial Assets
Marketable Securities	970	11,859
Commercial paper | Level 2
Financial Assets
Marketable Securities	970	11,859
Asset-backed securities
Financial Assets
Marketable Securities	0	8,237
Asset-backed securities | Level 2
Financial Assets
Marketable Securities	$ 0	$ 8,237

Condensed Consolidated Financ_3

Condensed Consolidated Financial Statement Details - Schedule of Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 13,179	$ 12,771
Finished goods	7,259	6,922
Total inventory	$ 20,438	$ 19,693

Condensed Consolidated Financ_4

Condensed Consolidated Financial Statement Details - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Prepaid expenses	$ 5,315	$ 5,310
Deferred contract acquisition costs	6,242	6,144
Other	1,388	1,927
Total prepaid expenses and other current assets	$ 12,945	$ 13,381

Condensed Consolidated Financ_5

Condensed Consolidated Financial Statement Details - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 48,722		$ 48,722		$ 42,487
Less: accumulated depreciation	(23,512)		(23,512)		(22,744)
Property and equipment, net	25,210		25,210		19,743
Depreciation expense	1,000	$ 700	2,000	$ 1,300
Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	29,586		29,586		27,028
Software(1)
Property Plant And Equipment [Line Items]
Property and equipment, gross	2,785		2,785		2,537
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	500		500		503
Leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	3,233		3,233		3,267
Construction in process
Property Plant And Equipment [Line Items]
Property and equipment, gross	12,618		12,618		9,152
Acquired software
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,400		1,400		1,100
Internally developed software
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 1,400		$ 1,400		$ 1,400
Minimum | Equipment
Property Plant And Equipment [Line Items]
Useful life	1 year		1 year
Minimum | Software(1)
Property Plant And Equipment [Line Items]
Useful life	1 year		1 year
Minimum | Furniture and fixtures
Property Plant And Equipment [Line Items]
Useful life	1 year		1 year
Minimum | Acquired software
Property Plant And Equipment [Line Items]
Useful life	1 year		1 year
Minimum | Internally developed software
Property Plant And Equipment [Line Items]
Useful life	6 years		6 years
Maximum | Equipment
Property Plant And Equipment [Line Items]
Useful life	5 years		5 years
Maximum | Software(1)
Property Plant And Equipment [Line Items]
Useful life	6 years		6 years
Maximum | Furniture and fixtures
Property Plant And Equipment [Line Items]
Useful life	7 years		7 years
Maximum | Acquired software
Property Plant And Equipment [Line Items]
Useful life	3 years		3 years

Condensed Consolidated Financ_6

Condensed Consolidated Financial Statement Details - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 1	$ 0.7	$ 2	$ 1.3

Condensed Consolidated Financ_7

Condensed Consolidated Financial Statement Details - Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accrued Liabilities, Current [Abstract]
Accrued compensation and benefits	$ 6,597	$ 19,832
Accrued tax liabilities	1,864	1,635
Lease liability	4,861	4,792
Other	9,334	10,924
Total accrued liabilities	$ 22,656	$ 37,183

Condensed Consolidated Financ_8

Condensed Consolidated Financial Statement Details - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 131,613	$ 126,992
Less: current portion	(78,023)	(74,340)
Non-current portion	53,590	52,652
Products
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	10,870	7,782
Services
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 120,743	$ 119,210

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 1.2	$ 1.3	$ 2.5	$ 2.5
Remaining purchase commitments	$ 19.8		$ 19.8

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		6 Months Ended
	Apr. 26, 2023	Oct. 31, 2018	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options exercised			$ 0.3	$ 1.5	$ 1	$ 1.7
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)			968,943		968,943
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
Two Thousand Twenty Three Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future grant (in shares)			5,600,236		5,600,236
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized	5,600,000
Two Thousand Twenty Three Stock Incentive Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized for future issuance (in shares)	3,475,099

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		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 3,472	$ 2,861	$ 7,214	$ 6,313
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	404	323	815	721
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	891	1,043	2,057	2,142
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	807	840	1,637	1,629
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	1,370	655	2,705	1,821
Stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	3,204	2,535	6,648	5,635
Employee stock purchase rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 268	$ 326	$ 566	$ 678

Equity Incentive Plans and St_5

Equity Incentive Plans and Stock-Based Compensation - Stock-based Compensation/Stock Repurchase Program (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($)
Share-Based Payment Arrangement [Abstract]
Total compensation expense related to unvested awards granted, not yet recognized	$ 27.6
Total compensation expense related to unvested awards granted, not yet recognized weighted-average period for recognition (in years)	2 years 2 months 15 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		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Number of Shares (thousands)
Outstanding options, Beginning balance (in shares)			279
Exercised (in shares)			(117)
Outstanding options, Ending balance (in shares)	162		162
Vested and exercisable (in shares)	162		162
Weighted-Average Exercise Price Per Share
Beginning balance (in dollars per share)			$ 6.59
Exercised (in dollars per share)			6.41
Ending balance (in dollars per share)	$ 6.72		6.72
Vested and exercisable at end of period (in dollars per share)	$ 6.72		$ 6.72
Weighted-average remaining contractual term (in years)			1 year 2 months 4 days
Weighted average remaining contractual term, Vested and exercisable at end of period (in years)			1 year 2 months 4 days
Aggregate Intrinsic Value	$ 1,275		$ 1,275
Aggregate Intrinsic Value, Vested and exercisable at end of period	$ 1,275		$ 1,275
Closing price (in dollars per share)	$ 14.59		$ 14.59
Intrinsic value of options exercised	$ 300	$ 1,500	$ 1,000	$ 1,700

Equity Incentive Plans and St_7

Equity Incentive Plans and Stock-Based Compensation - Information About Stock Options (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 0.3	$ 1.5	$ 1	$ 1.7

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		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 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)	3,215,000		3,215,000
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	$ 46,908		$ 46,908
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)			668,000
Released (in shares)			(521,000)
Canceled (in shares)			(150,000)
Unvested at end of period (in shares)	2,337,313		2,337,313
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)			13.47
Released (in dollars per share)			8.47
Canceled (in dollars per share)			12.24
Unvested at ending of period (in dollars per share)	$ 12		$ 12
Weighted-Average Remaining Vesting Term (years)			1 year 6 months 25 days
Fair value of released awards	$ 1,400	$ 1,500	$ 4,400	$ 3,900
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		877,794

Equity Incentive Plans and St_9

Equity Incentive Plans and Stock-Based Compensation - Stock Repurchase Program (Details) - USD ($) shares in Thousands, $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Nov. 01, 2022	Oct. 28, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchase Program, Authorized Amount			$ 50	$ 100
Treasury Stock, Value, Acquired, Cost Method	$ 6.2	$ 31.8
Treasury Stock, Shares, Acquired	437	2,400

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		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share Diluted [Line Items]
Net income	$ 11,626	$ 10,416	$ 15,584	$ 16,765
Weighted-average shares outstanding - basic (in shares)	74,017	75,893	74,009	76,343
Weighted Average Number Diluted Shares Outstanding Adjustment	1,411	2,413	1,503	2,466
Weighted-average shares outstanding - diluted (in shares)	75,428	78,306	75,512	78,809
Basic	$ 0.16	$ 0.14	$ 0.21	$ 0.22
Diluted	$ 0.15	$ 0.13	$ 0.21	$ 0.21
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	89	56	63	225

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 3,186	$ 3,212	$ 4,150	$ 4,352
Unrecognized tax benefits	$ 7,200		$ 7,200

Geographic Information - Schedu

Geographic Information - Schedule of Total Revenue Based on Customer's Location (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total revenue	$ 65,817	$ 67,973	$ 123,508	$ 130,645
Americas
Segment Reporting Information [Line Items]
Total revenue	36,921	38,553	66,877	71,511
Americas
Segment Reporting Information [Line Items]
Total revenue	31,840	33,756	55,961	62,930
Americas excluding United States
Segment Reporting Information [Line Items]
Total revenue	5,081	4,797	10,916	8,581
APJ
Segment Reporting Information [Line Items]
Total revenue	21,982	21,614	37,742	39,403
APAC excluding Japan
Segment Reporting Information [Line Items]
Total revenue	9,606	7,964	15,037	14,213
Japan
Segment Reporting Information [Line Items]
Total revenue	12,376	13,650	22,705	25,190
EMEA
Segment Reporting Information [Line Items]
Total revenue	$ 6,914	$ 7,806	$ 18,889	$ 19,731

Geographic Information - Long L

Geographic Information - Long Lived Assets By Geographic Area (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 44,004	$ 40,940
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	41,019	37,420
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	1,510	1,852
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 1,475	$ 1,668

Revenue - Additional Informatio

Revenue - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accumulated deficit	$ 114,870,000		$ 114,870,000		$ 130,454,000
Deferred revenue	131,613,000		131,613,000		126,992,000
Revenue recognized	26,100,000	$ 19,600,000	51,300,000	$ 44,200,000
Asset impairment charges for contract assets			0
Deferred contract acquisition costs	6,242,000		6,242,000		6,144,000
Deferred Sales Commissions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred contract acquisition costs	4,100,000		4,100,000		4,300,000
Amortization	1,500,000	$ 2,100,000	3,400,000	$ 4,200,000
Impairment loss of contract acquisition costs			0
Deferred contract acquisition costs	$ 6,200,000		$ 6,200,000		$ 6,100,000

Revenue - Contract Balances (De

Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 69,171	$ 72,928
Deferred revenue	78,023	74,340
Deferred revenue, non-current	53,590	52,652
Deferred contract acquisition costs	$ 6,242	$ 6,144

Revenue - Remaining Performance

Revenue - Remaining Performance Obligations (Details) $ in Thousands	Jun. 30, 2023 USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 131,613
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 78,023
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	$ 44,010
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	$ 9,580
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	Sep. 01, 2023	Aug. 15, 2023	Jul. 26, 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			Jul. 26, 2023
Common Stock, Dividends, Per Share, Declared	$ 0.06
Dividends Payable, Date to be Paid	Sep. 01, 2023
Dividends Payable, Date of Record		Aug. 15, 2023