Document and Entity Information
Document and Entity Information - shares | 9 Months Ended | |
Oct. 31, 2022 | Nov. 30, 2022 | |
Cover [Abstract] | ||
Document Type | 10-Q | |
Amendment Flag | false | |
Document Period End Date | Oct. 31, 2022 | |
Document Fiscal Year Focus | 2023 | |
Document Fiscal Period Focus | Q3 | |
Trading Symbol | AMBA | |
Entity Registrant Name | AMBARELLA, INC. | |
Entity Central Index Key | 0001280263 | |
Current Fiscal Year End Date | --01-31 | |
Entity Filer Category | Large Accelerated Filer | |
Entity Small Business | false | |
Entity Emerging Growth Company | false | |
Entity Shell Company | false | |
Entity Current Reporting Status | Yes | |
Entity Common Stock, Shares Outstanding | 38,756,861 | |
Entity File Number | 001-35667 | |
Entity Tax Identification Number | 98-0459628 | |
Entity Address, Address Line One | 3101 Jay Street | |
Entity Address, City or Town | Santa Clara | |
Entity Address, State or Province | CA | |
Entity Address, Postal Zip Code | 95054 | |
City Area Code | 408 | |
Local Phone Number | 734-8888 | |
Entity Incorporation, State or Country Code | E9 | |
Document Quarterly Report | true | |
Document Transition Report | false | |
Title of 12(b) Security | Ordinary Shares, $0.00045 Par Value Per Share | |
Security Exchange Name | NASDAQ | |
Entity Interactive Data Current | Yes |
Condensed Consolidated Balance
Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Current assets: | ||
Cash and cash equivalents | $ 112,837 | $ 171,043 |
Marketable debt securities | 86,197 | 0 |
Accounts receivable, net | 48,556 | 44,307 |
Inventories | 45,395 | 45,219 |
Restricted cash | 7 | 10 |
Prepaid expenses and other current assets | 5,338 | 6,169 |
Total current assets | 298,330 | 266,748 |
Property and equipment, net | 10,753 | 10,134 |
Deferred tax assets, non-current | 14,585 | 15,340 |
Intangible assets, net | 47,550 | 46,302 |
Operating lease right-of-use assets, net | 9,186 | 11,127 |
Goodwill | 303,625 | 303,625 |
Other non-current assets | 3,428 | 4,269 |
Total assets | 687,457 | 657,545 |
Current liabilities: | ||
Accounts payable | 29,130 | 31,170 |
Accrued and other current liabilities | 43,561 | 52,064 |
Operating lease liabilities, current | 3,425 | 3,391 |
Income taxes payable | 3,782 | 1,245 |
Deferred revenue, current | 1,036 | 1,414 |
Total current liabilities | 80,934 | 89,284 |
Operating lease liabilities, non-current | 5,897 | 8,322 |
Other long-term liabilities | 12,228 | 12,763 |
Total liabilities | 99,059 | 110,369 |
Commitments and contingencies (Note 13) | 0 | 0 |
Shareholders' equity: | ||
Preference shares, $0.00045 par value per share, 20,000,000 shares authorized and no shares issued and outstanding at October 31, 2022 and January 31, 2022, respectively | 0 | 0 |
Ordinary shares, $0.00045 par value per share, 200,000,000 shares authorized; 38,746,179 and 37,302,818 shares issued and outstanding at October 31, 2022 and January 31, 2022, respectively | 17 | 17 |
Additional paid-in capital | 543,833 | 447,287 |
Accumulated other comprehensive loss | (1,043) | 0 |
Retained earnings | 45,591 | 99,872 |
Total shareholders’ equity | 588,398 | 547,176 |
Total liabilities and shareholders' equity | $ 687,457 | $ 657,545 |
Condensed Consolidated Balanc_2
Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares | Oct. 31, 2022 | Jan. 31, 2022 |
Statement Of Financial Position [Abstract] | ||
Preference shares, par value | $ 0.00045 | $ 0.00045 |
Preference shares, shares authorized | 20,000,000 | 20,000,000 |
Preference shares, shares issued | 0 | 0 |
Preference shares, shares outstanding | 0 | 0 |
Ordinary shares, par value | $ 0.00045 | $ 0.00045 |
Ordinary shares, shares authorized | 200,000,000 | 200,000,000 |
Ordinary shares, shares issued | 38,746,179 | 37,302,818 |
Ordinary shares, shares outstanding | 38,746,179 | 37,302,818 |
Condensed Consolidated Statemen
Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Income Statement [Abstract] | ||||
Revenue | $ 83,096 | $ 92,167 | $ 254,285 | $ 241,627 |
Cost of revenue | 31,418 | 34,541 | 94,996 | 90,817 |
Gross profit | 51,678 | 57,626 | 159,289 | 150,810 |
Operating expenses: | ||||
Research and development | 52,864 | 41,362 | 151,892 | 118,794 |
Selling, general and administrative | 18,944 | 17,475 | 58,213 | 49,323 |
Total operating expenses | 71,808 | 58,837 | 210,105 | 168,117 |
Loss from operations | (20,130) | (1,211) | (50,816) | (17,307) |
Other income, net | 1,433 | 407 | 1,493 | 1,218 |
Loss before income taxes | (18,697) | (804) | (49,323) | (16,089) |
Provision (benefit) for income taxes | 1,112 | (1,560) | 4,958 | 1,129 |
Net income (loss) | $ (19,809) | $ 756 | $ (54,281) | $ (17,218) |
Net income (loss) per share attributable to ordinary shareholders: | ||||
Basic | $ (0.51) | $ 0.02 | $ (1.42) | $ (0.47) |
Diluted | $ (0.51) | $ 0.02 | $ (1.42) | $ (0.47) |
Weighted-average shares used to compute net income (loss) per share attributable to ordinary shareholders: | ||||
Basic | 38,582,584 | 36,792,187 | 38,185,421 | 36,391,676 |
Diluted | 38,582,584 | 39,046,274 | 38,185,421 | 36,391,676 |
Condensed Consolidated Statem_2
Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Statement Of Income And Comprehensive Income [Abstract] | ||||
Net income (loss) | $ (19,809) | $ 756 | $ (54,281) | $ (17,218) |
Other comprehensive loss, net of tax: | ||||
Net change and reclassification of unrealized losses on investments | (1,041) | (608) | (1,043) | (1,219) |
Other comprehensive loss, net of tax | (1,041) | (608) | (1,043) | (1,219) |
Comprehensive income (loss) | $ (20,850) | $ 148 | $ (55,324) | $ (18,437) |
Condensed Consolidated Statem_3
Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands | Total | Outstanding Ordinary Shares [Member] | Additional Paid-in Capital [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Retained Earnings [Member] |
Beginning Balance, Amount at Jan. 31, 2021 | $ 474,976 | $ 16 | $ 347,458 | $ 1,219 | $ 126,283 |
Beginning Balance, Shares at Jan. 31, 2021 | 35,547,440 | ||||
Issuance of shares through employee equity plans, Amount | 6,741 | $ 0 | 6,741 | 0 | 0 |
Issuance of shares through employee equity plans, Shares | 643,120 | ||||
Issuance of shares through employee stock purchase plan, Amount | 3,694 | $ 0 | 3,694 | 0 | 0 |
Issuance of shares through employee stock purchase plan, Shares | 82,783 | ||||
Stock-based compensation expense | 17,128 | $ 0 | 17,128 | 0 | 0 |
Other comprehensive loss - net of tax | (427) | (427) | |||
Net income (loss) | (10,818) | 0 | 0 | 0 | (10,818) |
Ending Balance, Amount at Apr. 30, 2021 | 491,294 | $ 16 | 375,021 | 792 | 115,465 |
Ending Balance, Shares at Apr. 30, 2021 | 36,273,343 | ||||
Beginning Balance, Amount at Jan. 31, 2021 | 474,976 | $ 16 | 347,458 | 1,219 | 126,283 |
Beginning Balance, Shares at Jan. 31, 2021 | 35,547,440 | ||||
Other comprehensive loss - net of tax | (1,219) | ||||
Net income (loss) | (17,218) | ||||
Ending Balance, Amount at Oct. 31, 2021 | 529,235 | $ 17 | 420,153 | 109,065 | |
Ending Balance, Shares at Oct. 31, 2021 | 36,925,142 | ||||
Beginning Balance, Amount at Apr. 30, 2021 | 491,294 | $ 16 | 375,021 | 792 | 115,465 |
Beginning Balance, Shares at Apr. 30, 2021 | 36,273,343 | ||||
Issuance of shares through employee equity plans, Amount | 1,461 | $ 0 | 1,461 | 0 | 0 |
Issuance of shares through employee equity plans, Shares | 371,293 | ||||
Stock-based compensation expense | 17,639 | $ 0 | 17,639 | 0 | 0 |
Other comprehensive loss - net of tax | (184) | (184) | |||
Net income (loss) | (7,156) | 0 | 0 | 0 | (7,156) |
Ending Balance, Amount at Jul. 31, 2021 | 503,054 | $ 16 | 394,121 | 608 | 108,309 |
Ending Balance, Shares at Jul. 31, 2021 | 36,644,636 | ||||
Issuance of shares through employee equity plans, Amount | 2,201 | $ 1 | 2,200 | ||
Issuance of shares through employee equity plans, Shares | 244,507 | ||||
Issuance of shares through employee stock purchase plan, Amount | 3,513 | 3,513 | |||
Issuance of shares through employee stock purchase plan, Shares | 35,999 | ||||
Stock-based compensation expense | 20,319 | 20,319 | |||
Other comprehensive loss - net of tax | (608) | (608) | |||
Net income (loss) | 756 | 756 | |||
Ending Balance, Amount at Oct. 31, 2021 | 529,235 | $ 17 | 420,153 | 109,065 | |
Ending Balance, Shares at Oct. 31, 2021 | 36,925,142 | ||||
Beginning Balance, Amount at Jan. 31, 2022 | $ 547,176 | $ 17 | 447,287 | 99,872 | |
Beginning Balance, Shares at Jan. 31, 2022 | 37,302,818 | 37,302,818 | |||
Issuance of shares through employee equity plans, Amount | $ 8,589 | $ 0 | 8,589 | 0 | 0 |
Issuance of shares through employee equity plans, Shares | 736,516 | ||||
Issuance of shares through employee stock purchase plan, Amount | 3,250 | $ 0 | 3,250 | 0 | 0 |
Issuance of shares through employee stock purchase plan, Shares | 43,545 | ||||
Stock-based compensation expense | 26,155 | $ 0 | 26,155 | 0 | 0 |
Net income (loss) | (10,822) | 0 | 0 | 0 | (10,822) |
Ending Balance, Amount at Apr. 30, 2022 | 574,348 | $ 17 | 485,281 | 89,050 | |
Ending Balance, Shares at Apr. 30, 2022 | 38,082,879 | ||||
Beginning Balance, Amount at Jan. 31, 2022 | $ 547,176 | $ 17 | 447,287 | 99,872 | |
Beginning Balance, Shares at Jan. 31, 2022 | 37,302,818 | 37,302,818 | |||
Other comprehensive loss - net of tax | $ (1,043) | ||||
Net income (loss) | (54,281) | ||||
Ending Balance, Amount at Oct. 31, 2022 | $ 588,398 | $ 17 | 543,833 | (1,043) | 45,591 |
Ending Balance, Shares at Oct. 31, 2022 | 38,746,179 | 38,746,179 | |||
Beginning Balance, Amount at Apr. 30, 2022 | $ 574,348 | $ 17 | 485,281 | 89,050 | |
Beginning Balance, Shares at Apr. 30, 2022 | 38,082,879 | ||||
Issuance of shares through employee equity plans, Amount | 1,204 | $ 0 | 1,204 | 0 | 0 |
Issuance of shares through employee equity plans, Shares | 323,572 | ||||
Stock-based compensation expense | 26,211 | $ 0 | 26,211 | 0 | 0 |
Other comprehensive loss - net of tax | (2) | (2) | |||
Net income (loss) | (23,650) | (23,650) | |||
Ending Balance, Amount at Jul. 31, 2022 | 578,111 | $ 17 | 512,696 | (2) | 65,400 |
Ending Balance, Shares at Jul. 31, 2022 | 38,406,451 | ||||
Issuance of shares through employee equity plans, Amount | 386 | 386 | |||
Issuance of shares through employee equity plans, Shares | 278,687 | ||||
Issuance of shares through employee stock purchase plan, Amount | 3,386 | 3,386 | |||
Issuance of shares through employee stock purchase plan, Shares | 61,041 | ||||
Stock-based compensation expense | 27,365 | 27,365 | |||
Other comprehensive loss - net of tax | (1,041) | (1,041) | |||
Net income (loss) | (19,809) | $ 0 | 0 | 0 | (19,809) |
Ending Balance, Amount at Oct. 31, 2022 | $ 588,398 | $ 17 | $ 543,833 | $ (1,043) | $ 45,591 |
Ending Balance, Shares at Oct. 31, 2022 | 38,746,179 | 38,746,179 |
Condensed Consolidated Statem_4
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 9 Months Ended | |
Oct. 31, 2022 | Oct. 31, 2021 | |
Cash flows from operating activities: | ||
Net loss | $ (54,281) | $ (17,218) |
Adjustments to reconcile net loss to net cash provided by operating activities: | ||
Depreciation and amortization | 14,426 | 9,139 |
Amortization (accretion) of premium (discount) on marketable debt securities, net | (281) | 1,034 |
Stock-based compensation | 82,051 | 60,267 |
Deferred income taxes | 755 | (553) |
Other non-cash items, net | 28 | (517) |
Changes in operating assets and liabilities: | ||
Accounts receivable | (4,249) | (19,802) |
Inventories | (176) | (20,958) |
Prepaid expenses and other current assets | 80 | (275) |
Other non-current assets | 841 | 878 |
Accounts payable | (2,044) | 5,947 |
Accrued and other current liabilities | 2,813 | 2,359 |
Income taxes payable | 2,537 | 396 |
Deferred revenue | (378) | (57) |
Operating lease liabilities | (3,254) | (2,681) |
Other long-term liabilities | 135 | 265 |
Net cash provided by operating activities | 39,003 | 18,224 |
Cash flows from investing activities: | ||
Purchase of investments | (87,641) | (118,726) |
Sales of investments | 756 | 208,132 |
Maturities of investments | 107,760 | |
Purchase of tangible and intangible assets | (13,023) | (6,235) |
Escrow claim associated with business acquisition | 749 | |
Net cash provided by (used in) investing activities | (99,159) | 190,931 |
Cash flows from financing activities: | ||
Proceeds from exercise of stock options and employee stock purchase plan | 6,834 | 11,127 |
Long-term financing payment for intangible assets | (4,887) | (3,796) |
Net cash provided by financing activities | 1,947 | 7,331 |
Net increase (decrease) in cash, cash equivalents and restricted cash | (58,209) | 216,486 |
Cash, cash equivalents and restricted cash at beginning of period | 171,053 | 241,284 |
Cash, cash equivalents and restricted cash at end of period | 112,844 | 457,770 |
Supplemental disclosure of cash flow information: | ||
Cash paid for income taxes | 1,340 | 1,294 |
Supplemental disclosure of noncash investing and financing activities: | ||
Unpaid liabilities related to tangible and intangible assets purchases | $ 1,239 | $ 1,346 |
Organization and Summary of Sig
Organization and Summary of Significant Accounting Policies | 9 Months Ended |
Oct. 31, 2022 | |
Accounting Policies [Abstract] | |
Organization and Summary of Significant Accounting Policies | 1. Organization and Summary of Significant Accounting Policies Organization Ambarella, Inc. (the “Company”) was incorporated in the Cayman Islands on January 15, 2004. The Company is a leading developer of low-power semiconductor solutions offering high-definition (HD) and Ultra HD compression, image processing, and powerful deep neural network processing. The Company combines its processor design capabilities with its expertise in video and image processing, algorithms and software to provide a technology platform that is designed to be easily scalable across multiple applications and enable rapid and efficient product development. The Company’s system-on-a-chip, or SoC, designs fully integrate high-definition video processing, image processing, artificial intelligence (AI) computer vision algorithms, audio processing and system functions onto a single chip. These low power SoCs deliver exceptional video and image quality and can extract valuable data from high-resolution video and radar streams. The Company is currently addressing a broad range of human and computer vision applications, including video security, advanced driver assistance systems (ADAS), electronic mirrors, drive recorders, driver/cabin monitoring systems, autonomous driving, and industrial and robotic applications. The Company sells its solutions to leading original equipment manufacturers, or OEMs, who include the Company’s SoCs in their products, and original design manufacturers, or ODMs, who include the Company’s SoCs in the products that they supply to OEMs, globally. Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared by the Company in accordance with the instructions to Form 10-Q pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and, therefore, do not include all information and notes normally provided in audited financial statements. The accounting policies are described in the “Notes to Consolidated Financial Statements” in the Annual Report on Form 10-K for the 2022 fiscal year filed with the SEC on April 1, 2022 (the “Form 10-K”) and updated, as necessary, in this Form 10-Q. The year-end condensed consolidated balance sheet data presented for comparative purposes was derived from audited financial statements, but does not include all disclosures required by generally accepted accounting principles in the United States (“U.S. GAAP”). In the opinion of management, all adjustments (consisting of normal recurring accruals and adjustments) considered necessary for a fair statement have been included. The results of operations for any interim period are not necessarily indicative of, nor comparable to, the results of operations for any other interim period or for a full fiscal year. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the Form 10-K. Basis of Consolidation The Company’s fiscal year ends on January 31. The condensed consolidated financial statements of the Company and its subsidiaries have been prepared in conformity with U.S. GAAP. All intercompany transactions and balances have been eliminated upon consolidation. Significant Accounting Policies There have been no material changes to the Company’s significant accounting policies described in Note 1 - Organization and Summary of Significant Accounting Policies, of the Notes to Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended January 31, 2022. Concentration of Risk The Company’s products are manufactured, assembled and tested by third-party contractors located primarily in Asia. The Company does not have long-term agreements with these contractors. A significant disruption in the operations of one or more of these contractors would impact the production of the Company’s products which could have a material adverse effect on its business, financial condition and results of operations. A substantial portion of the Company’s revenue is derived from sales through one of its distributors, WT Microelectronics Co., Ltd., formerly Wintech Microelectronics Co., Ltd., or WT, which serves as its non-exclusive sales representative in Asia other than Japan, and directly to one ODM customer, Chicony Electronics Co., Ltd., or Chicony. Termination of the relationships with these customers could result in a temporary or permanent loss of revenue. Furthermore, any credit issues from these customers could impair their abilities to make timely payment to the Company. See Note 14 for additional information regarding revenue and credit concentration with these customers. Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents, marketable debt securities and accounts receivable. The Company maintains its cash primarily in checking accounts with reputable financial institutions. Cash deposits held with these financial institutions may exceed the amount of insurance provided on such deposits. The Company has not experienced any losses on deposits of its cash. In order to limit the exposure of each investment, the cash equivalents and marketable debt securities consist of money market funds, commercial paper, debt securities of corporations or corporate bonds, asset-backed securities and U.S. government securities which management assesses to be highly liquid. The Company does not hold or issue financial instruments for trading purposes. The Company performs ongoing credit evaluation of its customers and adjusts credit limits based upon payment history and customers’ credit worthiness. The Company regularly monitors collections and payments from its customers. Restricted Cash Amounts included in restricted cash represent those required to be set aside to secure certain transactions in a foreign entity. As of October 31, 2022 and January 31, 2022, restricted cash was immaterial, respectively. The following table presents cash, cash equivalents and restricted cash reported on the condensed consolidated balance sheets, and the totals are presented on the condensed consolidated statements of cash flows: As of October 31, 2022 January 31, 2022 October 31, 2021 January 31, 2021 (in thousands) Cash and cash equivalents $ 112,837 $ 171,043 $ 457,760 $ 241,274 Restricted cash 7 10 10 10 Total as presented in the condensed consolidated statements of cash flows $ 112,844 $ 171,053 $ 457,770 $ 241,284 Recent Accounting Pronouncements None. |
Financial Instruments and Fair
Financial Instruments and Fair Value | 9 Months Ended |
Oct. 31, 2022 | |
Investments All Other Investments [Abstract] | |
Financial Instruments and Fair Value | 2. Financial Instruments and Fair Value In the second quarter of fiscal year 2023, the Company resumed its investments in money market funds and debt securities after a full liquidation of its investments in fiscal year 2022 to finance the acquisition of Oculii Corporation, or Oculii. The debt security investment portfolio consists of commercial paper, debt securities of corporations or corporate bonds, asset-backed securities and U.S. government securities. All of the investments are denominated in United States dollars and reported at fair value as available-for-sale securities in the condensed consolidated balance sheets as follows: As of October 31, 2022 Amortized Unrealized Unrealized Losses Fair Value (in thousands) Money market funds $ 13,525 $ — $ — $ 13,525 Commercial paper 18,161 — — 18,161 Corporate bonds 21,390 1 (425 ) 20,966 Asset-backed securities 16,287 — (260 ) 16,027 U.S. government securities 31,402 — (359 ) 31,043 Total cash equivalents and marketable debt securities $ 100,765 $ 1 $ (1,044 ) $ 99,722 As of January 31, 2022 Amortized Unrealized Gains Unrealized Losses Fair Value (in thousands) Money market funds $ 20 $ — $ — $ 20 Total cash equivalents and marketable debt securities $ 20 $ — $ — $ 20 As of October 31, 2022, there were no debt securities with unrealized losses for more than twelve months. As of October 31, 2022 January (in thousands) Included in cash equivalents $ 13,525 $ 20 Included in marketable debt securities 86,197 — Total cash equivalents and marketable debt securities $ 99,722 $ 20 The contractual maturities of the investments at October 31, 2022 and January 31, 2022 were as follows: As of October 31, 2022 January (in thousands) Less than one year $ 54,829 $ 20 Due in 1 - 5 years 44,893 — Total cash equivalents and marketable debt securities $ 99,722 $ 20 The unrealized gains and losses on the available-for-sale securities were primarily caused by fluctuations in market value and interest rates as a result of the economic environment. In accordance with ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, the Company estimates the expected losses at an individual security level whenever a security’s fair value is below its amortized cost basis using the discounted cash flow method. The credit-related portion of the loss is recognized in other income, net in the condensed consolidated statements of operations but is limited to the difference between the fair value and the amortized cost basis of the security, adjusted for accrued interest. The non-credit-related portion of the loss is recognized in accumulated other comprehensive loss in the condensed consolidated balance sheets. The credit-related losses were not material for the three and nine months ended October 31, 2022, and 2021, respectively. Interest income, including amortization of premiums and accretion of discounts related to the investments, as well as realized gains and losses from sales of the investments are recorded in other income, net, in the condensed consolidated statements of operations. For the three months ended October 31, 2022 and 2021, interest income and realized gains, net, was approximately $0.7 million and $0.7 million, respectively. For the nine months ended October 31, 2022 and 2021, interest income and realized gains, net, were approximately $0.8 million and $1.7 million, respectively. The following fair value hierarchy is applied for disclosure of the inputs used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows: Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities. Level 2—Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments. Level 3—Unobservable inputs based on the Company’s own assumptions used to measure assets and liabilities at fair value. The inputs require significant management judgment or estimation. The Company measures the fair value of money market funds using quoted prices in active markets for identical assets and classifies them within Level 1. The fair value of the Company’s investments in other debt securities are obtained based on quoted prices for similar assets in active markets and are classified within Level 2. The following tables present the fair value of the financial instruments measured on a recurring basis as of October 31, 2022 and January 31, 2022, respectively: As of October 31, 2022 Total Level 1 Level 2 Level 3 (in thousands) Money market funds $ 13,525 $ 13,525 $ — $ — Commercial paper 18,161 — 18,161 — Corporate bonds 20,966 — 20,966 — Asset-backed securities 16,027 — 16,027 — U.S. government securities 31,043 — 31,043 — Total cash equivalents and marketable debt securities $ 99,722 $ 13,525 $ 86,197 $ — As of January 31, 2022 Total Level 1 Level 2 Level 3 (in thousands) Money market funds $ 20 $ 20 $ — $ — Total cash equivalents and marketable debt securities $ 20 $ 20 $ — $ — |
Inventories
Inventories | 9 Months Ended |
Oct. 31, 2022 | |
Inventory Disclosure [Abstract] | |
Inventories | 3. Inventories Inventories at October 31, 2022 and January 31, 2022 consisted of the following: As of October 31, 2022 January (in thousands) Work-in-progress $ 33,128 $ 25,844 Finished goods 12,267 19,375 Total $ 45,395 $ 45,219 |
Property and Equipment, Net
Property and Equipment, Net | 9 Months Ended |
Oct. 31, 2022 | |
Property Plant And Equipment [Abstract] | |
Property and Equipment, Net | 4. Property and Equipment, Net Depreciation expense was approximately $1.0 million and $0.7 million for the three months ended October 31, 2022 and 2021, respectively, and was approximately $2.8 million and $1.9 million for the nine months ended October 31, 2022 and 2021, respectively. Property and equipment at October 31, 2022 and January 31, 2022 consisted of the following: As of October 31, 2022 January (in thousands) Computer hardware and software $ 19,038 $ 16,488 Tools and equipment 7,769 7,532 Furniture and fixtures 1,310 1,243 Leasehold improvements 3,178 2,942 Construction in progress 1,166 1,060 32,461 29,265 Less: accumulated depreciation and amortization (21,708 ) (19,131 ) Total property and equipment, net $ 10,753 $ 10,134 |
Intangible Assets, Net
Intangible Assets, Net | 9 Months Ended |
Oct. 31, 2022 | |
Goodwill And Intangible Assets Disclosure [Abstract] | |
Intangible Assets, Net | 5. Intangible Assets, Net As of October 31, 2022, intangible assets primarily consist of software licenses as well as developed technology, customer relationships and trade name that were acquired from business combinations. The Company enters into certain software license agreements with third parties from time-to-time. The software licenses consist of noncancelable on-premise internal-use software and software with alternative use that is to be sold, leased or otherwise marketed as part of a product. The licenses have been capitalized as intangible assets, and the corresponding future payments have been recorded as liabilities at net present value. As of October 31, 2022, $2.3 million was recorded in accrued and other current liabilities and $1.0 million was recorded in other long-term liabilities in the condensed consolidated balance sheets. The components of intangible assets as of October 31, 2022 and January 31, 2022 were as follows : As of October 31, 2022 As of January 31, 2022 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount (in thousands) Software licenses $ 31,220 $ (15,571 ) $ 15,649 $ 22,093 $ (11,331 ) $ 10,762 Developed technology 21,200 (3,175 ) 18,025 21,200 (904 ) 20,296 Customer relationships 13,200 (1,467 ) 11,733 13,200 (367 ) 12,833 Trade name 2,500 (357 ) 2,143 2,500 (89 ) 2,411 Total intangible assets, net $ 68,120 $ (20,570 ) $ 47,550 $ 58,993 $ (12,691 ) $ 46,302 During the nine months ended October 31, 2022, there were approximately $10.0 million of software licenses purchased and approximately $0.9 million of software licenses retired. The amortization expense associated with software licenses was approximately $2.0 million and $1.6 million for the three months ended October 31, 2022 and 2021, respectively, and was approximately $5.2 million and $4.6 million for the nine months ended October 31, 2022 and 2021, respectively. The amortization expense associated with acquisition-related intangible assets, including developed technology, customer relationships and trade name, was approximately $1.2 million and $0.1 million for the three months ended October 31, 2022 and 2021, respectively, and was $3.6 million and $0.1 million for the nine months ended October 31, 2022 and 2021, respectively. The expected future amortization expense related to these intangible assets as of October 31, 2022 is as follows: As of October 31, 2022 Fiscal Year (in thousands) 2023 (3 months remaining) $ 2,448 2024 8,932 2025 7,437 2026 5,930 2027 5,711 Thereafter 17,092 Total future amortization expenses: $ 47,550 Intangible assets are tested for impairment at least annually, in the fourth fiscal quarter, or more frequently if events or changes in circumstances indicate that the assets may be impaired. There were no intangible asset impairments for the three and nine months ended October 31, 2022 and 2021, respectively. |
Accrued and Other Current Liabi
Accrued and Other Current Liabilities | 9 Months Ended |
Oct. 31, 2022 | |
Payables And Accruals [Abstract] | |
Accrued and Other Current Liabilities | 6. Accrued and Other Current Liabilities Accrued and other current liabilities at October 31, 2022 and January 31, 2022 consisted of the following: As of October 31, 2022 January (in thousands) Accrued employee compensation $ 20,195 $ 30,044 Accrued product development costs 13,533 10,523 Software license liabilities, current 2,332 6,001 Other accrued liabilities 7,501 5,496 Total accrued and other current liabilities $ 43,561 $ 52,064 The timing of SoC development and payments to outside foundries resulted in the fluctuation of accrued product development costs. Approximately $10.9 million of annual bonus was paid in the first quarter of fiscal year 2023, of which $3.2 million was paid in cash and $7.7 million was settled with restricted stock units. |
Leases
Leases | 9 Months Ended |
Oct. 31, 2022 | |
Leases [Abstract] | |
Leases | 7. Leases The Company enters into various operating leases for its worldwide facilities. In the second quarter of fiscal year 2023, the Company extended leases for its Shenzhen office and one of its facilities in Santa Clara, California for an additional two years beginning October 1, 2022 to September 30, 2024. For the lease extensions, the Company recorded an increase to the operating lease right-of-use (ROU) assets and corresponding operating lease liabilities of approximately $0.8 million in the condensed consolidated balance sheets. For the three months ended October 31, 2022, the Company modified a lease liability for its Italy office lease and recorded a reduction to the ROU assets and corresponding operating lease liabilities of approximately $0.2 million in the condensed consolidated balance sheets. Operating lease expense was approximately $1.0 million and $0.9 million for the three months ended October 31, 2022 and 2021, respectively, and was approximately $2.8 million and $2.5 million for the nine months ended October 31, 2022 and 2021, respectively. The Company's short-term leases and finance leases were not material as of October 31, 2022 and January 31, 2022, respectively . Supplemental cash flow information related to the operating leases is as follows: Three Months Ended Nine Months Ended October 31, 2022 October 31, 2022 (in thousands) Cash paid for operating leases included in operating cash flows $ 1,095 $ 3,254 Supplemental non-cash information related to lease liabilities arising from obtaining right-of-use assets $ 78 $ 248 Leased assets changes arising from lease modifications $ (235 ) $ 575 As of October 31, 2022, the weighted average remaining lease term is 2.85 years, and the weighted average discount rate is 3.59 percent. Future minimum lease payments for the lease liabilities are as follows : As of October 31, 2022 Fiscal Year (in thousands) 2023 (3 months remaining) $ 919 2024 3,664 2025 3,355 2026 1,363 2027 319 Thereafter 113 Total future annual minimum lease payments 9,733 Less: interest (411 ) Total lease liabilities $ 9,322 |
Other Long-Term Liabilities
Other Long-Term Liabilities | 9 Months Ended |
Oct. 31, 2022 | |
Other Liabilities Disclosure [Abstract] | |
Other Long-Term Liabilities | 8. Other Long-Term Liabilities Other long-term liabilities at October 31, 2022 and January 31, 2022 consisted of the following: As of October 31, 2022 January (in thousands) Unrecognized tax benefits, including interest $ 9,684 $ 9,313 Deferred tax liabilities, non-current 1,536 1,769 Software license liabilities, non-current 1,004 1,674 Other long-term liabilities 4 7 Total other long-term liabilities $ 12,228 $ 12,763 |
Capital Stock
Capital Stock | 9 Months Ended |
Oct. 31, 2022 | |
Equity [Abstract] | |
Capital Stock | 9. Capital Stock Preference shares After completion of the Company’s initial public offering in 2012, a total of 20,000,000 preference shares, with a $0.00045 par value per share, were authorized. There were no preference shares issued and outstanding as of October 31, 2022 and January 31, 2022, respectively. Ordinary shares As of October 31, 2022 and January 31, 2022, a total of 200,000,000 ordinary shares were authorized. In the first quarter of fiscal year 2023, the Company added 466,285 ordinary shares to the ordinary shares reserved for issuance, pursuant to an “evergreen” provision contained in the Amended and Restated 2012 Employee Stock Purchase Plan, or ESPP. Pursuant to such provision, for each fiscal year, the number of ordinary shares reserved for issuance under the ESPP is automatically increased by a number equal to the lesser of (i) 1,500,000 ordinary shares, (ii) one and one quarter percent (1.25%) of the aggregate number of ordinary shares outstanding on February 1 st As of October 31, 2022 and January 31, 2022, the following ordinary shares were reserved for future issuance under the Company’s equity plans and ESPP: As of October 31, 2022 January 31, 2022 Shares reserved for options, restricted stock and restricted stock units under equity plans 6,120,269 7,461,541 Shares reserved for ESPP 2,986,403 2,624,704 Stock repurchase program On May 27, 2022, the Company ’ |
Stock-based Compensation
Stock-based Compensation | 9 Months Ended |
Oct. 31, 2022 | |
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | |
Stock-based Compensation | 10. Stock-based Compensation The following table presents the classification of stock-based compensation for the periods indicated: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 (in thousands) Stock-based compensation: Cost of revenue $ 360 $ 391 $ 1,071 $ 1,073 Research and development 18,741 13,725 53,775 36,444 Selling, general and administrative 9,000 7,937 27,205 22,750 Total stock-based compensation $ 28,101 $ 22,053 $ 82,051 $ 60,267 As of October 31, 2022, approximately $2.4 million of stock-based compensation expense was accrued and reflected in accrued and other current liabilities in the condensed consolidated balance sheets. Total unrecognized compensation cost related to unvested stock options at October 31, 2022 was $18.7 million and is expected to be recognized over a weighted-average period of 2.02 years. Total unrecognized compensation cost related to unvested restricted stock units at October 31, 2022 was $213.7 million and is expected to be recognized over a weighted-average period of 2.59 years. In April 2022, the Company’s Compensation Committee of the Board of Directors approved the acceleration of vesting of 35,703 shares of unvested equity awards associated with the departure of Mr. Casey Eichler, who was the Company’s Chief Financial Officer until March 2022. As a result, there was approximately $1.7 million of additional stock-based compensation expense, net recognized in fiscal year 2023. The following table sets forth the weighted-average assumptions used to estimate the fair value of stock options and employee stock purchase plan awards for the periods indicated: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 Stock Options: Volatility — — — 51 % Risk-free interest rate — — — 0.98 % Expected term (years) — — — 5.27 Dividend yield — — — 0 % Employee stock purchase plan awards: Volatility 72 % 54 % 81 % 57 % Risk-free interest rate 3.78 % 0.05 % 2.32 % 0.06 % Expected term (years) 0.5 0.5 0.5 0.5 Dividend yield 0 % 0 % 0 % 0 % The following table summarizes stock option activities for the period indicated: Option Outstanding Weighted- Total Average Weighted- Value Of Remaining Aggregate Weighted- Average Options Contractual Intrinsic Average Grant-date Exercised Term Value Shares Exercise Fair Value (in (in years) (in Outstanding at January 31, 2022 619,322 $ 40.08 Granted — — — Exercised (79,880 ) 30.79 $ 4,696 Forfeited (7,995 ) 49.19 Expired (1,418 ) 19.81 Outstanding at October 31, 2022 530,029 41.40 4.42 $ 8,605 Exercisable at October 31, 2022 392,266 $ 43.51 3.47 $ 5,417 The intrinsic value of options outstanding and exercisable is calculated based on the difference between the fair market value of the Company’s ordinary shares on the reporting date and the exercise price. The closing price of the Company’s ordinary shares on October 31, 2022 was $54.73, as reported by The NASDAQ Global Market. The intrinsic value of exercised options is calculated based on the difference between the fair market value of the Company’s ordinary shares on the exercise date and the exercise price. The following table summarizes restricted stock unit activities for the period indicated: Weighted- Average Grant-Date Shares Fair Value Unvested at January 31, 2022 2,651,135 $ 85.41 Granted 1,499,374 74.42 Vested (1,258,895 ) 69.81 Forfeited (77,346 ) 101.36 Unvested at October 31, 2022 2,814,268 $ 86.40 As of October 31, 2022, the aggregate intrinsic value of unvested restricted stock units was $154.0 million. |
Net Income (Loss) Per Ordinary
Net Income (Loss) Per Ordinary Share | 9 Months Ended |
Oct. 31, 2022 | |
Earnings Per Share [Abstract] | |
Net Loss Per Ordinary Share | 11. Net Income (Loss) Per Ordinary Share The following table sets forth the computation of basic and diluted income (loss) per ordinary share for the periods indicated: Three October 31, Nine October 31, 2022 2021 2022 2021 (in thousands, except share and per share data) Numerator: Net income (loss) $ (19,809 ) $ 756 $ (54,281 ) $ (17,218 ) Denominator: Weighted-average ordinary shares - basic 38,582,584 36,792,187 38,185,421 36,391,676 Effect of potentially dilutive securities: Employee stock options — 327,417 — — Restricted stock units — 1,921,723 — — Employee stock purchase plan — 4,947 — — Weighted-average ordinary shares - diluted 38,582,584 39,046,274 38,185,421 36,391,676 Net income (loss) per ordinary share: Basic $ (0.51 ) $ 0.02 $ (1.42 ) $ (0.47 ) Diluted $ (0.51 ) $ 0.02 $ (1.42 ) $ (0.47 ) The following weighted-average potentially dilutive securities were excluded from the computation of diluted income (loss) per ordinary share as their effect would have been antidilutive: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 Options to purchase ordinary shares 314,645 13,399 351,595 269,713 Restricted stock units 1,408,315 51 1,549,473 1,105,083 Employee stock purchase plan 10,231 3,446 10,899 9,010 1,733,191 16,896 1,911,967 1,383,806 |
Income Taxes
Income Taxes | 9 Months Ended |
Oct. 31, 2022 | |
Income Tax Disclosure [Abstract] | |
Income Taxes | 12. Income Taxes The following table provides details of income taxes for the periods indicated: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 (in thousands) Loss before income taxes $ (18,697 ) $ (804 ) $ (49,323 ) $ (16,089 ) Provision (benefit) for income taxes 1,112 (1,560 ) 4,958 1,129 Effective tax rate (6.0)% 194.2% (10.1)% (7.0)% The Company recorded an income tax provision of $1.1 million and an income tax benefit $1.6 million for the three months ended October 31, 2022 and 2021, respectively. The Company recorded an income tax provision of $5.0 million and $1.1 million for the nine months ended October 31, 2022 and 2021, respectively. The increase in income tax expense for the three and nine months ended October 31, 2022 was primarily due to a decrease in the U.S. federal research tax credit, a decrease in tax benefits from excess stock-based compensation deductions, and an increase in non-deductible stock-based compensation, partially offset by a decrease in the proportion of profits generated in higher tax jurisdictions. The Company files federal and state income tax returns in the United States and in various foreign jurisdictions. The Internal Revenue Service is currently examining the Company’s U.S. federal income tax return for the fiscal year ended January 31, 2017. The tax years 2013 to 2021 remain open to examination by U.S. federal tax authorities. The tax years 2009 to 2021 remain open to examination by U.S. state tax authorities. The tax years 2015 to 2021 remain open to examination by foreign tax authorities. Fiscal years outside of the normal statute of limitations remain open to audit by tax authorities due to tax attributes generated in those earlier years, which have been carried forward and may be audited in subsequent years when utilized. The Company regularly assesses the likelihood of adverse outcomes resulting from potential tax examinations to determine the adequacy of its provision for income taxes. These assessments can require considerable estimates and judgments. As of October 31, 2022, the gross amount of unrecognized tax benefits was approximately $31.5 million. If the estimates of income tax liabilities prove to be less than the ultimate assessment, then a further charge to expense could be required. If events occur, and the payment of these amounts ultimately proves to be unnecessary, the reversal of the liabilities could result in tax benefits being recognized in the period in which the Company determines the liabilities are no longer necessary. The Company does not anticipate significant changes to its uncertain tax positions during the next twelve months. The Inflation Reduction Act of 2022 (“IRA”) was enacted on August 16, 2022. The IRA applies to tax years beginning after December 31, 2022 and introduces a 15% minimum tax for corporations whose average annual adjusted financial statement income for any consecutive three-tax-year period preceding the tax year exceeds $1 billion. The tax also applies to U.S. members of a non-U.S. parented group if the group satisfies the $1 billion threshold and the U.S. members have adjusted financial statements income of $100 million or more. It also introduced a 1% excise tax on the fair market value of stock repurchases made by certain corporations after December 31, 2022 and several tax credits and incentives. The Company does not expect a material impact to its financial statements from these new tax laws. |
Commitments and Contingencies
Commitments and Contingencies | 9 Months Ended |
Oct. 31, 2022 | |
Commitments And Contingencies Disclosure [Abstract] | |
Commitments and Contingencies | 13. Commitments and Contingencies Contract Manufacturer Commitments The Company’s components and products are procured and built by independent contract manufacturers based on sales forecasts. These forecasts include estimates of future demand, historical trends, analysis of sales and marketing activities, and adjustment of overall market conditions. The Company regularly issues purchase orders to independent contract manufacturers which are cancelable upon agreement between the Company and the third-party manufacturers. These manufacturing purchase commitments typically provide the Company with flexibility to cancel, reschedule or adjust requirements based upon business needs but the Company may incur certain costs depending on the production stage of the products. As of October 31, 2022 and January 31, 2022, total manufacturing purchase commitments were approximately $47.9 million and $71.5 million, respectively. The Company also reviews and assesses the need for any expected loss liabilities on quarterly basis for all products that it does not expect to sell for which it has committed purchases from suppliers. As of October 31, 2022, an approximately $2.5 million loss was recognized in the condensed consolidated balance sheets from adverse purchase commitments. There were no material loss liabilities recorded in the condensed consolidated balance sheets from adverse purchase commitments as of January 31, 2022. Indemnification The Company, from time to time, in the normal course of business, indemnifies certain vendors with whom it enters into contractual relationships. The Company has agreed to hold the other party harmless against third-party claims in connection with the Company’s future products. The Company also indemnifies certain customers against third-party claims related to certain intellectual property and product liability matters. It is not possible to determine the maximum potential amount of liability under these indemnification obligations due to the limited history of prior indemnification claims and the unique facts and circumstances that are likely to be involved in each particular claim. The Company has not made payments under these obligations, and no liabilities have been recorded for these obligations in the condensed consolidated balance sheets as of October 31, 2022 and January 31, 2022, respectively. Other Matters From time to time, the Company is subject to commercial disputes, employment issues, intellectual property claims and litigation, in the ordinary course of its business |
Segment Reporting
Segment Reporting | 9 Months Ended |
Oct. 31, 2022 | |
Segment Reporting [Abstract] | |
Segment Reporting | 14. Segment Reporting The Company operates in one reportable segment related to the development and sales of low-power, high-definition (HD), Ultra HD video compression, image processing and computer vision solutions. The Chief Executive Officer of the Company has been identified as the Chief Operating Decision Maker (the “CODM”) and manages the Company’s operations as a whole. For the purpose of evaluating financial performance and allocating resources, the CODM reviews financial information presented on a consolidated basis accompanied by information by customer and geographic region. Geographic Revenue The following table sets forth the Company’s revenue by geographic region based on bill-to location for the periods indicated: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 (in thousands) Taiwan $ 54,443 $ 59,412 $ 157,884 $ 153,135 Asia Pacific 15,292 21,323 54,691 60,122 Europe 5,295 4,432 18,167 11,837 North America other than United States 5,748 5,984 15,020 13,117 United States 2,318 1,016 8,523 3,416 Total revenue $ 83,096 $ 92,167 $ 254,285 $ 241,627 As of October 31, 2022, substantially all of the Company’s property and equipment were located in the Asia Pacific region, United States and Europe with approximate net amounts of $5.3 million, $3.9 million and $1.6 million, respectively. Major Customers For the three and nine months ended October 31, 2022, the customers representing 10% or more of revenue and accounts receivable were WT and Chicony, which accounted for approximately 61.6% and 10.7% of total revenue for the three months ended October 31, 2022, respectively, and accounted for approximately 59.1% and 11.6% of total revenue for the nine months ended October 31, 2022, respectively. For the three and nine months ended October 31, 2021, the customers representing 10% or more of revenue and accounts receivable were WT and Chicony, which accounted for approximately 63.1% and 13.4% of total revenue for the three months ended October 31, 2021, respectively, and accounted for approximately 62.7% and 14.9% of total revenue for the nine months ended October 31, 2021, respectively. Accounts receivable with WT and Chicony were approximately $25.4 million and $8.9 million, respectively, as of October 31, 2022. |
Organization and Summary of S_2
Organization and Summary of Significant Accounting Policies (Policies) | 9 Months Ended |
Oct. 31, 2022 | |
Accounting Policies [Abstract] | |
Organization | Organization Ambarella, Inc. (the “Company”) was incorporated in the Cayman Islands on January 15, 2004. The Company is a leading developer of low-power semiconductor solutions offering high-definition (HD) and Ultra HD compression, image processing, and powerful deep neural network processing. The Company combines its processor design capabilities with its expertise in video and image processing, algorithms and software to provide a technology platform that is designed to be easily scalable across multiple applications and enable rapid and efficient product development. The Company’s system-on-a-chip, or SoC, designs fully integrate high-definition video processing, image processing, artificial intelligence (AI) computer vision algorithms, audio processing and system functions onto a single chip. These low power SoCs deliver exceptional video and image quality and can extract valuable data from high-resolution video and radar streams. The Company is currently addressing a broad range of human and computer vision applications, including video security, advanced driver assistance systems (ADAS), electronic mirrors, drive recorders, driver/cabin monitoring systems, autonomous driving, and industrial and robotic applications. The Company sells its solutions to leading original equipment manufacturers, or OEMs, who include the Company’s SoCs in their products, and original design manufacturers, or ODMs, who include the Company’s SoCs in the products that they supply to OEMs, globally. |
Basis of Presentation | Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared by the Company in accordance with the instructions to Form 10-Q pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and, therefore, do not include all information and notes normally provided in audited financial statements. The accounting policies are described in the “Notes to Consolidated Financial Statements” in the Annual Report on Form 10-K for the 2022 fiscal year filed with the SEC on April 1, 2022 (the “Form 10-K”) and updated, as necessary, in this Form 10-Q. The year-end condensed consolidated balance sheet data presented for comparative purposes was derived from audited financial statements, but does not include all disclosures required by generally accepted accounting principles in the United States (“U.S. GAAP”). In the opinion of management, all adjustments (consisting of normal recurring accruals and adjustments) considered necessary for a fair statement have been included. The results of operations for any interim period are not necessarily indicative of, nor comparable to, the results of operations for any other interim period or for a full fiscal year. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the Form 10-K. |
Basis of Consolidation | Basis of Consolidation The Company’s fiscal year ends on January 31. The condensed consolidated financial statements of the Company and its subsidiaries have been prepared in conformity with U.S. GAAP. All intercompany transactions and balances have been eliminated upon consolidation. |
Concentration of Risk | Concentration of Risk The Company’s products are manufactured, assembled and tested by third-party contractors located primarily in Asia. The Company does not have long-term agreements with these contractors. A significant disruption in the operations of one or more of these contractors would impact the production of the Company’s products which could have a material adverse effect on its business, financial condition and results of operations. A substantial portion of the Company’s revenue is derived from sales through one of its distributors, WT Microelectronics Co., Ltd., formerly Wintech Microelectronics Co., Ltd., or WT, which serves as its non-exclusive sales representative in Asia other than Japan, and directly to one ODM customer, Chicony Electronics Co., Ltd., or Chicony. Termination of the relationships with these customers could result in a temporary or permanent loss of revenue. Furthermore, any credit issues from these customers could impair their abilities to make timely payment to the Company. See Note 14 for additional information regarding revenue and credit concentration with these customers. Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents, marketable debt securities and accounts receivable. The Company maintains its cash primarily in checking accounts with reputable financial institutions. Cash deposits held with these financial institutions may exceed the amount of insurance provided on such deposits. The Company has not experienced any losses on deposits of its cash. In order to limit the exposure of each investment, the cash equivalents and marketable debt securities consist of money market funds, commercial paper, debt securities of corporations or corporate bonds, asset-backed securities and U.S. government securities which management assesses to be highly liquid. The Company does not hold or issue financial instruments for trading purposes. The Company performs ongoing credit evaluation of its customers and adjusts credit limits based upon payment history and customers’ credit worthiness. The Company regularly monitors collections and payments from its customers. |
Restricted Cash | Restricted Cash Amounts included in restricted cash represent those required to be set aside to secure certain transactions in a foreign entity. As of October 31, 2022 and January 31, 2022, restricted cash was immaterial, respectively. The following table presents cash, cash equivalents and restricted cash reported on the condensed consolidated balance sheets, and the totals are presented on the condensed consolidated statements of cash flows: As of October 31, 2022 January 31, 2022 October 31, 2021 January 31, 2021 (in thousands) Cash and cash equivalents $ 112,837 $ 171,043 $ 457,760 $ 241,274 Restricted cash 7 10 10 10 Total as presented in the condensed consolidated statements of cash flows $ 112,844 $ 171,053 $ 457,770 $ 241,284 |
Recent Accounting Pronouncements | Recent Accounting Pronouncements None. |
Organization and Summary of S_3
Organization and Summary of Significant Accounting Policies (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Accounting Policies [Abstract] | |
Schedule of Cash, Cash Equivalents and Restricted Cash | The following table presents cash, cash equivalents and restricted cash reported on the condensed consolidated balance sheets, and the totals are presented on the condensed consolidated statements of cash flows: As of October 31, 2022 January 31, 2022 October 31, 2021 January 31, 2021 (in thousands) Cash and cash equivalents $ 112,837 $ 171,043 $ 457,760 $ 241,274 Restricted cash 7 10 10 10 Total as presented in the condensed consolidated statements of cash flows $ 112,844 $ 171,053 $ 457,770 $ 241,284 |
Financial Instruments and Fai_2
Financial Instruments and Fair Value (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Investments All Other Investments [Abstract] | |
Schedule of Fair Value as Available-for-Sale Securities | The debt security investment portfolio consists of commercial paper, debt securities of corporations or corporate bonds, asset-backed securities and U.S. government securities. All of the investments are denominated in United States dollars and reported at fair value as available-for-sale securities in the condensed consolidated balance sheets as follows: As of October 31, 2022 Amortized Unrealized Unrealized Losses Fair Value (in thousands) Money market funds $ 13,525 $ — $ — $ 13,525 Commercial paper 18,161 — — 18,161 Corporate bonds 21,390 1 (425 ) 20,966 Asset-backed securities 16,287 — (260 ) 16,027 U.S. government securities 31,402 — (359 ) 31,043 Total cash equivalents and marketable debt securities $ 100,765 $ 1 $ (1,044 ) $ 99,722 As of January 31, 2022 Amortized Unrealized Gains Unrealized Losses Fair Value (in thousands) Money market funds $ 20 $ — $ — $ 20 Total cash equivalents and marketable debt securities $ 20 $ — $ — $ 20 |
Schedule of Cash Equivalents and Marketable Debt Securities | As of October 31, 2022, there were no debt securities with unrealized losses for more than twelve months. As of October 31, 2022 January (in thousands) Included in cash equivalents $ 13,525 $ 20 Included in marketable debt securities 86,197 — Total cash equivalents and marketable debt securities $ 99,722 $ 20 |
Summary of Contractual Maturities of Investments | The contractual maturities of the investments at October 31, 2022 and January 31, 2022 were as follows: As of October 31, 2022 January (in thousands) Less than one year $ 54,829 $ 20 Due in 1 - 5 years 44,893 — Total cash equivalents and marketable debt securities $ 99,722 $ 20 |
Schedule of Fair Value of Financial Instruments Measured on Recurring Basis | The following tables present the fair value of the financial instruments measured on a recurring basis as of October 31, 2022 and January 31, 2022, respectively: As of October 31, 2022 Total Level 1 Level 2 Level 3 (in thousands) Money market funds $ 13,525 $ 13,525 $ — $ — Commercial paper 18,161 — 18,161 — Corporate bonds 20,966 — 20,966 — Asset-backed securities 16,027 — 16,027 — U.S. government securities 31,043 — 31,043 — Total cash equivalents and marketable debt securities $ 99,722 $ 13,525 $ 86,197 $ — As of January 31, 2022 Total Level 1 Level 2 Level 3 (in thousands) Money market funds $ 20 $ 20 $ — $ — Total cash equivalents and marketable debt securities $ 20 $ 20 $ — $ — |
Inventories (Tables)
Inventories (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Inventory Disclosure [Abstract] | |
Schedule of Inventory | Inventories at October 31, 2022 and January 31, 2022 consisted of the following: As of October 31, 2022 January (in thousands) Work-in-progress $ 33,128 $ 25,844 Finished goods 12,267 19,375 Total $ 45,395 $ 45,219 |
Property and Equipment, Net (Ta
Property and Equipment, Net (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Property Plant And Equipment [Abstract] | |
Schedule of Property and Equipment | Property and equipment at October 31, 2022 and January 31, 2022 consisted of the following: As of October 31, 2022 January (in thousands) Computer hardware and software $ 19,038 $ 16,488 Tools and equipment 7,769 7,532 Furniture and fixtures 1,310 1,243 Leasehold improvements 3,178 2,942 Construction in progress 1,166 1,060 32,461 29,265 Less: accumulated depreciation and amortization (21,708 ) (19,131 ) Total property and equipment, net $ 10,753 $ 10,134 |
Intangible Assets, Net (Tables)
Intangible Assets, Net (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Goodwill And Intangible Assets Disclosure [Abstract] | |
Summary of Components of Intangible Assets | The components of intangible assets as of October 31, 2022 and January 31, 2022 were as follows : As of October 31, 2022 As of January 31, 2022 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount (in thousands) Software licenses $ 31,220 $ (15,571 ) $ 15,649 $ 22,093 $ (11,331 ) $ 10,762 Developed technology 21,200 (3,175 ) 18,025 21,200 (904 ) 20,296 Customer relationships 13,200 (1,467 ) 11,733 13,200 (367 ) 12,833 Trade name 2,500 (357 ) 2,143 2,500 (89 ) 2,411 Total intangible assets, net $ 68,120 $ (20,570 ) $ 47,550 $ 58,993 $ (12,691 ) $ 46,302 |
Summary of Expected Future Amortization Expense Related to Intangible Assets | The expected future amortization expense related to these intangible assets as of October 31, 2022 is as follows: As of October 31, 2022 Fiscal Year (in thousands) 2023 (3 months remaining) $ 2,448 2024 8,932 2025 7,437 2026 5,930 2027 5,711 Thereafter 17,092 Total future amortization expenses: $ 47,550 |
Accrued and Other Current Lia_2
Accrued and Other Current Liabilities (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Payables And Accruals [Abstract] | |
Schedule of Accrued and Other Current Liabilities | Accrued and other current liabilities at October 31, 2022 and January 31, 2022 consisted of the following: As of October 31, 2022 January (in thousands) Accrued employee compensation $ 20,195 $ 30,044 Accrued product development costs 13,533 10,523 Software license liabilities, current 2,332 6,001 Other accrued liabilities 7,501 5,496 Total accrued and other current liabilities $ 43,561 $ 52,064 |
Leases (Tables)
Leases (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Leases [Abstract] | |
Schedule of Supplemental Cash Flow Information Related to Leases | Supplemental cash flow information related to the operating leases is as follows: Three Months Ended Nine Months Ended October 31, 2022 October 31, 2022 (in thousands) Cash paid for operating leases included in operating cash flows $ 1,095 $ 3,254 Supplemental non-cash information related to lease liabilities arising from obtaining right-of-use assets $ 78 $ 248 Leased assets changes arising from lease modifications $ (235 ) $ 575 |
Schedule of Future Minimum Lease Payments for Lease Liabilities | As of October 31, 2022, the weighted average remaining lease term is 2.85 years, and the weighted average discount rate is 3.59 percent. Future minimum lease payments for the lease liabilities are as follows : As of October 31, 2022 Fiscal Year (in thousands) 2023 (3 months remaining) $ 919 2024 3,664 2025 3,355 2026 1,363 2027 319 Thereafter 113 Total future annual minimum lease payments 9,733 Less: interest (411 ) Total lease liabilities $ 9,322 |
Other Long-Term Liabilities (Ta
Other Long-Term Liabilities (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Other Liabilities Disclosure [Abstract] | |
Schedule of Other Long-Term Liabilities | Other long-term liabilities at October 31, 2022 and January 31, 2022 consisted of the following: As of October 31, 2022 January (in thousands) Unrecognized tax benefits, including interest $ 9,684 $ 9,313 Deferred tax liabilities, non-current 1,536 1,769 Software license liabilities, non-current 1,004 1,674 Other long-term liabilities 4 7 Total other long-term liabilities $ 12,228 $ 12,763 |
Capital Stock (Tables)
Capital Stock (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Equity [Abstract] | |
Schedule of Ordinary Shares Reserved for Future Issuance under Company's Equity Plans and ESPP | As of October 31, 2022 and January 31, 2022, the following ordinary shares were reserved for future issuance under the Company’s equity plans and ESPP: As of October 31, 2022 January 31, 2022 Shares reserved for options, restricted stock and restricted stock units under equity plans 6,120,269 7,461,541 Shares reserved for ESPP 2,986,403 2,624,704 |
Stock-based Compensation (Table
Stock-based Compensation (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | |
Classification of Stock-based Compensation | The following table presents the classification of stock-based compensation for the periods indicated: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 (in thousands) Stock-based compensation: Cost of revenue $ 360 $ 391 $ 1,071 $ 1,073 Research and development 18,741 13,725 53,775 36,444 Selling, general and administrative 9,000 7,937 27,205 22,750 Total stock-based compensation $ 28,101 $ 22,053 $ 82,051 $ 60,267 |
Weighted-Average Assumptions Used to Estimate Fair Value | The following table sets forth the weighted-average assumptions used to estimate the fair value of stock options and employee stock purchase plan awards for the periods indicated: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 Stock Options: Volatility — — — 51 % Risk-free interest rate — — — 0.98 % Expected term (years) — — — 5.27 Dividend yield — — — 0 % Employee stock purchase plan awards: Volatility 72 % 54 % 81 % 57 % Risk-free interest rate 3.78 % 0.05 % 2.32 % 0.06 % Expected term (years) 0.5 0.5 0.5 0.5 Dividend yield 0 % 0 % 0 % 0 % |
Stock Option Activities | The following table summarizes stock option activities for the period indicated: Option Outstanding Weighted- Total Average Weighted- Value Of Remaining Aggregate Weighted- Average Options Contractual Intrinsic Average Grant-date Exercised Term Value Shares Exercise Fair Value (in (in years) (in Outstanding at January 31, 2022 619,322 $ 40.08 Granted — — — Exercised (79,880 ) 30.79 $ 4,696 Forfeited (7,995 ) 49.19 Expired (1,418 ) 19.81 Outstanding at October 31, 2022 530,029 41.40 4.42 $ 8,605 Exercisable at October 31, 2022 392,266 $ 43.51 3.47 $ 5,417 |
Restricted Stock Unit Activities | The following table summarizes restricted stock unit activities for the period indicated: Weighted- Average Grant-Date Shares Fair Value Unvested at January 31, 2022 2,651,135 $ 85.41 Granted 1,499,374 74.42 Vested (1,258,895 ) 69.81 Forfeited (77,346 ) 101.36 Unvested at October 31, 2022 2,814,268 $ 86.40 |
Net Income (Loss) Per Ordinar_2
Net Income (Loss) Per Ordinary Share (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Earnings Per Share [Abstract] | |
Computation of Basic and Diluted Loss Per Ordinary Share | The following table sets forth the computation of basic and diluted income (loss) per ordinary share for the periods indicated: Three October 31, Nine October 31, 2022 2021 2022 2021 (in thousands, except share and per share data) Numerator: Net income (loss) $ (19,809 ) $ 756 $ (54,281 ) $ (17,218 ) Denominator: Weighted-average ordinary shares - basic 38,582,584 36,792,187 38,185,421 36,391,676 Effect of potentially dilutive securities: Employee stock options — 327,417 — — Restricted stock units — 1,921,723 — — Employee stock purchase plan — 4,947 — — Weighted-average ordinary shares - diluted 38,582,584 39,046,274 38,185,421 36,391,676 Net income (loss) per ordinary share: Basic $ (0.51 ) $ 0.02 $ (1.42 ) $ (0.47 ) Diluted $ (0.51 ) $ 0.02 $ (1.42 ) $ (0.47 ) |
Weighted-Average Potentially Dilutive Securities Excluded from Computation of Diluted Loss Per Ordinary Share | The following weighted-average potentially dilutive securities were excluded from the computation of diluted income (loss) per ordinary share as their effect would have been antidilutive: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 Options to purchase ordinary shares 314,645 13,399 351,595 269,713 Restricted stock units 1,408,315 51 1,549,473 1,105,083 Employee stock purchase plan 10,231 3,446 10,899 9,010 1,733,191 16,896 1,911,967 1,383,806 |
Income Taxes (Tables)
Income Taxes (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Income Tax Disclosure [Abstract] | |
Summary of Income Taxes | The following table provides details of income taxes for the periods indicated: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 (in thousands) Loss before income taxes $ (18,697 ) $ (804 ) $ (49,323 ) $ (16,089 ) Provision (benefit) for income taxes 1,112 (1,560 ) 4,958 1,129 Effective tax rate (6.0)% 194.2% (10.1)% (7.0)% |
Segment Reporting (Tables)
Segment Reporting (Tables) | 9 Months Ended |
Oct. 31, 2022 | |
Segment Reporting [Abstract] | |
Company's Revenue by Geographic Region Based on Bill-to Location | The following table sets forth the Company’s revenue by geographic region based on bill-to location for the periods indicated: Three Months Ended October 31, Nine Months Ended October 31, 2022 2021 2022 2021 (in thousands) Taiwan $ 54,443 $ 59,412 $ 157,884 $ 153,135 Asia Pacific 15,292 21,323 54,691 60,122 Europe 5,295 4,432 18,167 11,837 North America other than United States 5,748 5,984 15,020 13,117 United States 2,318 1,016 8,523 3,416 Total revenue $ 83,096 $ 92,167 $ 254,285 $ 241,627 |
Organization and Summary of S_4
Organization and Summary of Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 | Oct. 31, 2021 | Jan. 31, 2021 |
Cash And Cash Equivalents [Abstract] | ||||
Cash and cash equivalents | $ 112,837 | $ 171,043 | $ 457,760 | $ 241,274 |
Restricted cash | 7 | 10 | 10 | 10 |
Total as presented in the condensed consolidated statements of cash flows | $ 112,844 | $ 171,053 | $ 457,770 | $ 241,284 |
Financial Instruments and Fai_3
Financial Instruments and Fair Value - Schedule of Fair Value as Available-for-Sale Securities (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Schedule of Available-for-sale Securities [Line Items] | ||
Amortized Cost | $ 100,765 | $ 20 |
Unrealized Gains | 1 | 0 |
Unrealized Losses | (1,044) | 0 |
Fair Value | 99,722 | 20 |
Money market funds [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Amortized Cost | 13,525 | 20 |
Unrealized Gains | 0 | 0 |
Unrealized Losses | 0 | 0 |
Fair Value | 13,525 | $ 20 |
Commercial paper [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Amortized Cost | 18,161 | |
Unrealized Gains | 0 | |
Unrealized Losses | 0 | |
Fair Value | 18,161 | |
Corporate bonds [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Amortized Cost | 21,390 | |
Unrealized Gains | 1 | |
Unrealized Losses | (425) | |
Fair Value | 20,966 | |
Asset-backed securities [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Amortized Cost | 16,287 | |
Unrealized Gains | 0 | |
Unrealized Losses | (260) | |
Fair Value | 16,027 | |
U.S. government securities [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Amortized Cost | 31,402 | |
Unrealized Gains | 0 | |
Unrealized Losses | (359) | |
Fair Value | $ 31,043 |
Financial Instruments and Fai_4
Financial Instruments and Fair Value - Additional Information (Detail) $ in Millions | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 USD ($) Security | Oct. 31, 2021 USD ($) | Oct. 31, 2022 USD ($) Security | Oct. 31, 2021 USD ($) | |
Investments Debt And Equity Securities [Abstract] | ||||
Number of debt securities with unrealized losses for more than twelve months | Security | 0 | 0 | ||
Interest income | $ 0.7 | $ 0.7 | $ 0.8 | $ 0.8 |
Realized gains, net | $ 0.7 | $ 0.7 | $ 1.7 | $ 1.7 |
Financial Instruments And Fai_5
Financial Instruments And Fair Value - Schedule of Cash Equivalents and Marketable Debt Securities (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Schedule of Available-for-sale Securities [Line Items] | ||
Total cash equivalents and marketable debt securities | $ 99,722 | $ 20 |
Included in cash equivalents [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Total cash equivalents and marketable debt securities | 13,525 | 20 |
Included in marketable debt securities [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Total cash equivalents and marketable debt securities | $ 86,197 | $ 0 |
Financial Instruments and Fai_6
Financial Instruments and Fair Value - Summary of Contractual Maturities of Investments (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Available For Sale Securities Debt Maturities Fair Value [Abstract] | ||
Less than one year | $ 54,829 | $ 20 |
Due in 1 - 5 years | 44,893 | 0 |
Total cash equivalents and marketable debt securities | $ 99,722 | $ 20 |
Financial Instruments and Fai_7
Financial Instruments and Fair Value - Schedule of Fair Value of Financial Instruments Measured on Recurring Basis (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | $ 99,722 | $ 20 |
Money market funds [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 13,525 | 20 |
Commercial paper [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 18,161 | |
Corporate bonds [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 20,966 | |
Asset-backed securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 16,027 | |
U.S. government securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 31,043 | |
Level 1 [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 13,525 | 20 |
Level 1 [Member] | Money market funds [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 13,525 | 20 |
Level 1 [Member] | Commercial paper [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | |
Level 1 [Member] | Corporate bonds [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | |
Level 1 [Member] | Asset-backed securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | |
Level 1 [Member] | U.S. government securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | |
Level 2 [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 86,197 | 0 |
Level 2 [Member] | Money market funds [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | 0 |
Level 2 [Member] | Commercial paper [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 18,161 | |
Level 2 [Member] | Corporate bonds [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 20,966 | |
Level 2 [Member] | Asset-backed securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 16,027 | |
Level 2 [Member] | U.S. government securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 31,043 | |
Level 3 [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | 0 |
Level 3 [Member] | Money market funds [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | $ 0 |
Level 3 [Member] | Commercial paper [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | |
Level 3 [Member] | Corporate bonds [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | |
Level 3 [Member] | Asset-backed securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | 0 | |
Level 3 [Member] | U.S. government securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Total cash equivalents and marketable debt securities | $ 0 |
Inventories - Schedule of Inven
Inventories - Schedule of Inventory (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Inventory Disclosure [Abstract] | ||
Work-in-progress | $ 33,128 | $ 25,844 |
Finished goods | 12,267 | 19,375 |
Total | $ 45,395 | $ 45,219 |
Property and Equipment, Net - A
Property and Equipment, Net - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Property Plant And Equipment [Abstract] | ||||
Depreciation of property and equipment | $ 1 | $ 0.7 | $ 2.8 | $ 1.9 |
Property and Equipment, Net - S
Property and Equipment, Net - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Property Plant And Equipment [Line Items] | ||
Property and equipment, gross | $ 32,461 | $ 29,265 |
Less: accumulated depreciation and amortization | (21,708) | (19,131) |
Total property and equipment, net | 10,753 | 10,134 |
Computer hardware and software [Member] | ||
Property Plant And Equipment [Line Items] | ||
Property and equipment, gross | 19,038 | 16,488 |
Tools and equipment [Member] | ||
Property Plant And Equipment [Line Items] | ||
Property and equipment, gross | 7,769 | 7,532 |
Furniture and fixtures [Member] | ||
Property Plant And Equipment [Line Items] | ||
Property and equipment, gross | 1,310 | 1,243 |
Leasehold improvements [Member] | ||
Property Plant And Equipment [Line Items] | ||
Property and equipment, gross | 3,178 | 2,942 |
Construction in progress [Member] | ||
Property Plant And Equipment [Line Items] | ||
Property and equipment, gross | $ 1,166 | $ 1,060 |
Intangible Assets, Net - Additi
Intangible Assets, Net - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended | |||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | Jan. 31, 2022 | |
Finite Lived Intangible Assets [Line Items] | |||||
Liabilities associated with software license at net present value, current | $ 2,332,000 | $ 2,332,000 | $ 6,001,000 | ||
Liabilities associated with software license at net present value, non-current | 1,004,000 | 1,004,000 | $ 1,674,000 | ||
Amortization expense associate with acquisition-related intangible assets | 1,200,000 | $ 100,000 | 3,600,000 | $ 100,000 | |
Impairment of intangible assets | 0 | 0 | 0 | 0 | |
Internal-use software licenses [Member] | |||||
Finite Lived Intangible Assets [Line Items] | |||||
Software licenses purchased | 10,000,000 | ||||
Fully amortized software licenses retired | 900,000 | ||||
Amortization expense | $ 2,000,000 | $ 1,600,000 | $ 5,200,000 | $ 4,600,000 |
Intangible Assets, Net - Summar
Intangible Assets, Net - Summary of Components of Intangible Assets (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | $ 68,120 | $ 58,993 |
Accumulated Amortization | (20,570) | (12,691) |
Net Carrying Amount | 47,550 | 46,302 |
Software licenses [Member] | ||
Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 31,220 | 22,093 |
Accumulated Amortization | (15,571) | (11,331) |
Net Carrying Amount | 15,649 | 10,762 |
Developed technology [Member] | ||
Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 21,200 | 21,200 |
Accumulated Amortization | (3,175) | (904) |
Net Carrying Amount | 18,025 | 20,296 |
Customer relationships [Member] | ||
Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 13,200 | 13,200 |
Accumulated Amortization | (1,467) | (367) |
Net Carrying Amount | 11,733 | 12,833 |
Trade Name [Member] | ||
Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 2,500 | 2,500 |
Accumulated Amortization | (357) | (89) |
Net Carrying Amount | $ 2,143 | $ 2,411 |
Intangible Assets, Net - Summ_2
Intangible Assets, Net - Summary of Expected Future Amortization Expense Related to Intangible Assets (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Goodwill And Intangible Assets Disclosure [Abstract] | ||
2023 (3 months remaining) | $ 2,448 | |
2024 | 8,932 | |
2025 | 7,437 | |
2026 | 5,930 | |
2027 | 5,711 | |
Thereafter | 17,092 | |
Net Carrying Amount | $ 47,550 | $ 46,302 |
Accrued and Other Current Lia_3
Accrued and Other Current Liabilities - Schedule of Accrued and Other Current Liabilities (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Payables And Accruals [Abstract] | ||
Accrued employee compensation | $ 20,195 | $ 30,044 |
Accrued product development costs | 13,533 | 10,523 |
Software license liabilities, current | 2,332 | 6,001 |
Other accrued liabilities | 7,501 | 5,496 |
Total accrued and other current liabilities | $ 43,561 | $ 52,064 |
Accrued and Other Current Lia_4
Accrued and Other Current Liabilities - Additional Information (Detail) $ in Millions | 9 Months Ended |
Oct. 31, 2022 USD ($) | |
Schedule of Accrued Liabilities [Line Items] | |
Annual bonus paid | $ 10.9 |
Cash [Member] | |
Schedule of Accrued Liabilities [Line Items] | |
Annual bonus paid | 3.2 |
Restricted stock units [Member] | |
Schedule of Accrued Liabilities [Line Items] | |
Annual bonus paid | $ 7.7 |
Leases - Additional Information
Leases - Additional Information (Detail) $ in Millions | 3 Months Ended | 9 Months Ended | |||
Oct. 31, 2022 USD ($) | Jul. 31, 2022 USD ($) Facility | Oct. 31, 2021 USD ($) | Oct. 31, 2022 USD ($) | Oct. 31, 2021 USD ($) | |
Lessee Lease Description [Line Items] | |||||
Operating lease expense | $ 1 | $ 0.9 | $ 2.8 | $ 2.5 | |
Weighted-average remaining lease term – operating leases | 2 years 10 months 6 days | 2 years 10 months 6 days | |||
Weighted-average discount rate – operating leases | 3.59% | 3.59% | |||
Extended Operating Lease [Member] | |||||
Lessee Lease Description [Line Items] | |||||
Increase to operating lease right-of-use assets (ROU) | $ 0.8 | ||||
Increase to operating lease liabilities | $ 0.8 | ||||
Shenzhen Operating Lease [Member] | Extended Operating Lease [Member] | |||||
Lessee Lease Description [Line Items] | |||||
Inception date | Oct. 01, 2022 | ||||
Expiration date | Sep. 30, 2024 | ||||
Lease term | 2 years | ||||
Santa Clara Operating Lease [Member] | Extended Operating Lease [Member] | |||||
Lessee Lease Description [Line Items] | |||||
Inception date | Oct. 01, 2022 | ||||
Expiration date | Sep. 30, 2024 | ||||
Lease term | 2 years | ||||
Number of lease facility | Facility | 1 | ||||
Italy [Member] | Office Lease [Member] | |||||
Lessee Lease Description [Line Items] | |||||
Reduction to ROU assets | $ 0.2 | ||||
Reduction to operating lease liabilities | $ 0.2 |
Leases - Schedule of Supplement
Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
Oct. 31, 2022 | Oct. 31, 2022 | |
Leases [Abstract] | ||
Cash paid for operating leases included in operating cash flows | $ 1,095 | $ 3,254 |
Supplemental non-cash information related to lease liabilities arising from obtaining right-of-use assets | 78 | 248 |
Leased assets changes arising from lease modifications | $ (235) | $ 575 |
Leases - Schedule of Future Min
Leases - Schedule of Future Minimum Lease Payments for Lease Liabilities (Detail) $ in Thousands | Oct. 31, 2022 USD ($) |
Leases [Abstract] | |
2023 (3 months remaining) | $ 919 |
2024 | 3,664 |
2025 | 3,355 |
2026 | 1,363 |
2027 | 319 |
Thereafter | 113 |
Total future annual minimum lease payments | 9,733 |
Less: interest | (411) |
Total lease liabilities | $ 9,322 |
Other Long-Term Liabilities - S
Other Long-Term Liabilities - Schedule of Other Long-Term Liabilities (Detail) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022 |
Other Liabilities Disclosure [Abstract] | ||
Unrecognized tax benefits, including interest | $ 9,684 | $ 9,313 |
Deferred tax liabilities, non-current | 1,536 | 1,769 |
Software license liabilities, non-current | 1,004 | 1,674 |
Other long-term liabilities | 4 | 7 |
Total other long-term liabilities | $ 12,228 | $ 12,763 |
Capital Stock - Additional Info
Capital Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended | ||
May 27, 2022 | Apr. 30, 2022 | Oct. 31, 2022 | Jan. 31, 2022 | |
Class Of Stock [Line Items] | ||||
Preference shares, shares authorized | 20,000,000 | 20,000,000 | ||
Preference shares, par value | $ 0.00045 | $ 0.00045 | ||
Preference shares, shares issued | 0 | 0 | ||
Preference shares, shares outstanding | 0 | 0 | ||
Ordinary shares, shares authorized | 200,000,000 | 200,000,000 | ||
ESPP [Member] | ||||
Class Of Stock [Line Items] | ||||
Additional ordinary shares reserved for issuance | 466,285 | |||
ESPP [Member] | Scenario, plan automatically increased by the lessor of [Member] | ||||
Class Of Stock [Line Items] | ||||
Annual increase in ordinary shares for available for future issuance | 1,500,000 | |||
Annual shares increase for future issuance by percentage under 2012 employee stock purchase plan | 1.25% | |||
Stock Repurchase Program [Member] | ||||
Class Of Stock [Line Items] | ||||
Stock repurchase program, authorization date | May 27, 2022 | |||
Stock repurchased, shares | 0 | |||
Stock repurchase program, extended expiration period | 12 months | |||
Stock repurchase program, extended expiration date | Jun. 30, 2023 | |||
Amount available under stock repurchase program | $ 49 |
Capital Stock - Schedule of Ord
Capital Stock - Schedule of Ordinary Shares Reserved for Future Issuance under Company's Equity Plans and ESPP (Detail) - shares | Oct. 31, 2022 | Jan. 31, 2022 |
Equity Plans [Member] | ||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
Shares reserved | 6,120,269 | 7,461,541 |
ESPP [Member] | ||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
Shares reserved | 2,986,403 | 2,624,704 |
Stock-based Compensation - Clas
Stock-based Compensation - Classification of Stock-based Compensation (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Stock-based compensation: | ||||
Total stock-based compensation | $ 28,101 | $ 22,053 | $ 82,051 | $ 60,267 |
Cost of revenue [Member] | ||||
Stock-based compensation: | ||||
Total stock-based compensation | 360 | 391 | 1,071 | 1,073 |
Research and development [Member] | ||||
Stock-based compensation: | ||||
Total stock-based compensation | 18,741 | 13,725 | 53,775 | 36,444 |
Selling, general and administrative [Member] | ||||
Stock-based compensation: | ||||
Total stock-based compensation | $ 9,000 | $ 7,937 | $ 27,205 | $ 22,750 |
Stock-based Compensation - Addi
Stock-based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 9 Months Ended | 12 Months Ended |
Apr. 30, 2022 | Oct. 31, 2022 | Jan. 31, 2023 | |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | |||
Accrued stock-based compensation expense liabilities | $ 2.4 | ||
Closing price of ordinary shares | $ 54.73 | ||
Mr. Casey Eichler [Member] | |||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | |||
Acceleration of vesting of shares of unvested equity awards | 35,703 | ||
Mr. Casey Eichler [Member] | Scenario Forecast [Member] | |||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | |||
Additional stock-based compensation expense, net related to departure recognized | $ 1.7 | ||
Stock options [Member] | |||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | |||
Total unrecognized compensation cost, stock options | $ 18.7 | ||
Weighted average recognition period | 2 years 7 days | ||
Restricted stock units [Member] | |||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | |||
Total unrecognized compensation cost, restricted stock units | $ 213.7 | ||
Weighted average recognition period | 2 years 7 months 2 days | ||
Aggregate intrinsic value of unvested restricted stock units | $ 154 |
Stock-based Compensation - Weig
Stock-based Compensation - Weighted-Average Assumptions Used to Estimate Fair Value (Detail) | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Stock options [Member] | ||||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||||
Volatility | 0% | 0% | 0% | 51% |
Risk-free interest rate | 0% | 0% | 0% | 0.98% |
Expected term (years) | 0 years | 0 years | 0 years | 5 years 3 months 7 days |
Dividend yield | 0% | 0% | 0% | 0% |
Employee stock purchase plan awards [Member] | ||||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||||
Volatility | 72% | 54% | 81% | 57% |
Risk-free interest rate | 3.78% | 0.05% | 2.32% | 0.06% |
Expected term (years) | 6 months | 6 months | 6 months | 6 months |
Dividend yield | 0% | 0% | 0% | 0% |
Stock-based Compensation - Stoc
Stock-based Compensation - Stock Option Activities (Detail) $ / shares in Units, $ in Thousands | 9 Months Ended |
Oct. 31, 2022 USD ($) $ / shares shares | |
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | |
Shares, Outstanding | shares | 619,322 |
Shares, Granted | shares | 0 |
Shares, Exercised | shares | (79,880) |
Shares, Forfeited | shares | (7,995) |
Shares, Expired | shares | (1,418) |
Shares, Outstanding | shares | 530,029 |
Shares, Exercisable | shares | 392,266 |
Weighted-Average Exercise Price, Outstanding | $ 40.08 |
Weighted-Average Exercise Price, Granted | 0 |
Weighted-Average Exercise Price, Exercised | 30.79 |
Weighted-Average Exercise Price, Forfeited | 49.19 |
Weighted-Average Exercise Price, Expired | 19.81 |
Weighted-Average Exercise Price, Outstanding | 41.40 |
Weighted-Average Exercise Price, Exercisable | 43.51 |
Weighted-Average Grant-date Fair Value, Granted | $ 0 |
Total Intrinsic Value Of Options Exercised | $ | $ 4,696 |
Weighted-Average Remaining Contractual Term, Outstanding | 4 years 5 months 1 day |
Weighted-Average Remaining Contractual Term, Exercisable | 3 years 5 months 19 days |
Aggregate Intrinsic Value, Outstanding | $ | $ 8,605 |
Aggregate Intrinsic Value, Exercisable | $ | $ 5,417 |
Stock-based Compensation - Rest
Stock-based Compensation - Restricted Stock Unit Activities (Detail) - Restricted Stock Unit [Member] | 9 Months Ended |
Oct. 31, 2022 $ / shares shares | |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | |
Shares, Unvested, beginning balance | shares | 2,651,135 |
Shares, Granted | shares | 1,499,374 |
Shares, Vested | shares | (1,258,895) |
Shares, Forfeited | shares | (77,346) |
Shares, Unvested, ending balance | shares | 2,814,268 |
Weighted-Average Grant-Date Fair Value, Unvested, beginning balance | $ / shares | $ 85.41 |
Weighted-Average Grant-Date Fair Value, Granted | $ / shares | 74.42 |
Weighted-Average Grant-Date Fair Value, Vested | $ / shares | 69.81 |
Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares | 101.36 |
Weighted-Average Grant-Date Fair Value, Unvested, ending balance | $ / shares | $ 86.40 |
Net Income (Loss) Per Ordinar_3
Net Income (Loss) Per Ordinary Share - Computation of Basic and Diluted Loss Per Ordinary Share (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | ||||||
Oct. 31, 2022 | Jul. 31, 2022 | Apr. 30, 2022 | Oct. 31, 2021 | Jul. 31, 2021 | Apr. 30, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Numerator: | ||||||||
Net income (loss) | $ (19,809) | $ (23,650) | $ (10,822) | $ 756 | $ (7,156) | $ (10,818) | $ (54,281) | $ (17,218) |
Denominator: | ||||||||
Weighted-average ordinary shares - basic | 38,582,584 | 36,792,187 | 38,185,421 | 36,391,676 | ||||
Effect of potentially dilutive securities: | ||||||||
Weighted-average ordinary shares - diluted | 38,582,584 | 39,046,274 | 38,185,421 | 36,391,676 | ||||
Net income (loss) per ordinary share: | ||||||||
Basic | $ (0.51) | $ 0.02 | $ (1.42) | $ (0.47) | ||||
Diluted | $ (0.51) | $ 0.02 | $ (1.42) | $ (0.47) | ||||
Stock options [Member] | Weighted Average [Member] | ||||||||
Effect of potentially dilutive securities: | ||||||||
Effect of potentially dilutive securities | 0 | 327,417 | 0 | 0 | ||||
Restricted stock units [Member] | Weighted Average [Member] | ||||||||
Effect of potentially dilutive securities: | ||||||||
Effect of potentially dilutive securities | 0 | 1,921,723 | 0 | 0 | ||||
Employee stock purchase plan awards [Member] | Weighted Average [Member] | ||||||||
Effect of potentially dilutive securities: | ||||||||
Effect of potentially dilutive securities | 0 | 4,947 | 0 | 0 |
Net Income (Loss) Per Ordinar_4
Net Income (Loss) Per Ordinary Share - Weighted-Average Potentially Dilutive Securities Excluded from Computation of Diluted Loss Per Ordinary Share (Detail) - shares | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | ||||
Antidilutive shares excluded from computation of earnings per share | 1,733,191 | 16,896 | 1,911,967 | 1,383,806 |
Options to purchase ordinary shares [Member] | ||||
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | ||||
Antidilutive shares excluded from computation of earnings per share | 314,645 | 13,399 | 351,595 | 269,713 |
Restricted stock units [Member] | ||||
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | ||||
Antidilutive shares excluded from computation of earnings per share | 1,408,315 | 51 | 1,549,473 | 1,105,083 |
Employee stock purchase plan awards [Member] | ||||
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | ||||
Antidilutive shares excluded from computation of earnings per share | 10,231 | 3,446 | 10,899 | 9,010 |
Income Taxes - Summary of Incom
Income Taxes - Summary of Income Taxes (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Income Tax Disclosure [Abstract] | ||||
Loss before income taxes | $ (18,697) | $ (804) | $ (49,323) | $ (16,089) |
Provision (benefit) for income taxes | $ 1,112 | $ (1,560) | $ 4,958 | $ 1,129 |
Effective tax rate | (6.00%) | 194.20% | (10.10%) | (7.00%) |
Income Taxes - Additional Infor
Income Taxes - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Income Taxes [Line Items] | ||||
Income tax provision | $ 1,112,000 | $ (1,560,000) | $ 4,958,000 | $ 1,129,000 |
Unrecognized tax benefits | $ 31,500,000 | $ 31,500,000 | ||
Corporate Alternative Minimum Tax | 15% | |||
Excise tax rate on stock repurchases | 1% | |||
Adjusted [Member] | ||||
Income Taxes [Line Items] | ||||
Minimum corporate tax average annual adjusted financial statement income amount | $ 1,000,000,000 | |||
Minimum corporate tax average annual financial statement income amount for U.S and non-U.S parented group | 1,000,000,000 | |||
Minimum corporate tax average annual adjusted financial statement income amount for U.S. member of non-U.S. parented group | $ 100,000,000 | |||
U.S. federal tax authorities [Member] | Earliest tax year [Member] | ||||
Income Taxes [Line Items] | ||||
Income tax examination, year | 2013 | |||
U.S. federal tax authorities [Member] | Latest tax year [Member] | ||||
Income Taxes [Line Items] | ||||
Income tax examination, year | 2021 | |||
U.S. state tax authorities [Member] | Earliest tax year [Member] | ||||
Income Taxes [Line Items] | ||||
Income tax examination, year | 2009 | |||
U.S. state tax authorities [Member] | Latest tax year [Member] | ||||
Income Taxes [Line Items] | ||||
Income tax examination, year | 2021 | |||
Foreign tax authorities [Member] | Earliest tax year [Member] | ||||
Income Taxes [Line Items] | ||||
Income tax examination, year | 2015 | |||
Foreign tax authorities [Member] | Latest tax year [Member] | ||||
Income Taxes [Line Items] | ||||
Income tax examination, year | 2021 |
Commitments and Contingencies -
Commitments and Contingencies - Additional Information (Detail) - USD ($) | 9 Months Ended | 12 Months Ended |
Oct. 31, 2022 | Jan. 31, 2022 | |
Loss Contingencies [Line Items] | ||
Total manufacturing purchase commitments | $ 47,900,000 | $ 71,500,000 |
Loss recognized from adverse purchase commitments | 2,500,000 | 0 |
Indemnification agreement [Member] | ||
Loss Contingencies [Line Items] | ||
Payments under indemnification obligations | 0 | 0 |
Liabilities recorded under indemnification obligations | $ 0 | $ 0 |
Segment Reporting - Additional
Segment Reporting - Additional Information (Detail) $ in Thousands | 3 Months Ended | 9 Months Ended | |||
Oct. 31, 2022 USD ($) | Oct. 31, 2021 USD ($) | Oct. 31, 2022 USD ($) Segment | Oct. 31, 2021 USD ($) | Jan. 31, 2022 USD ($) | |
Concentration Risk [Line Items] | |||||
Number of reportable segment | Segment | 1 | ||||
Property and equipment, net | $ 10,753 | $ 10,753 | $ 10,134 | ||
Accounts receivable | $ 48,556 | $ 48,556 | $ 44,307 | ||
Sales revenue, net [Member] | WT [Member] | Customer concentration risk [Member] | |||||
Concentration Risk [Line Items] | |||||
Percentage of revenue | 61.60% | 63.10% | 59.10% | 62.70% | |
Sales revenue, net [Member] | Chicony [Member] | Customer concentration risk [Member] | |||||
Concentration Risk [Line Items] | |||||
Percentage of revenue | 10.70% | 13.40% | 11.60% | 14.90% | |
Accounts receivable [Member] | WT [Member] | Credit concentration risk [Member] | |||||
Concentration Risk [Line Items] | |||||
Accounts receivable | $ 25,400 | $ 25,400 | |||
Accounts receivable [Member] | Chicony [Member] | Credit concentration risk [Member] | |||||
Concentration Risk [Line Items] | |||||
Accounts receivable | $ 8,900 | $ 8,900 | |||
Asia Pacific [Member] | |||||
Concentration Risk [Line Items] | |||||
Property and equipment, net | $ 5,300 | $ 5,300 | |||
United States [Member] | |||||
Concentration Risk [Line Items] | |||||
Property and equipment, net | 3,900 | 3,900 | |||
Europe [Member] | |||||
Concentration Risk [Line Items] | |||||
Property and equipment, net | $ 1,600 | $ 1,600 |
Segment Reporting - Company's R
Segment Reporting - Company's Revenue by Geographic Region Based on Bill-to Location (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021 | |
Revenue from External Customer [Line Items] | ||||
Total revenue | $ 83,096 | $ 92,167 | $ 254,285 | $ 241,627 |
Taiwan [Member] | ||||
Revenue from External Customer [Line Items] | ||||
Total revenue | 54,443 | 59,412 | 157,884 | 153,135 |
Asia Pacific [Member] | ||||
Revenue from External Customer [Line Items] | ||||
Total revenue | 15,292 | 21,323 | 54,691 | 60,122 |
Europe [Member] | ||||
Revenue from External Customer [Line Items] | ||||
Total revenue | 5,295 | 4,432 | 18,167 | 11,837 |
North America other than United States [Member] | ||||
Revenue from External Customer [Line Items] | ||||
Total revenue | 5,748 | 5,984 | 15,020 | 13,117 |
United States [Member] | ||||
Revenue from External Customer [Line Items] | ||||
Total revenue | $ 2,318 | $ 1,016 | $ 8,523 | $ 3,416 |