Other Financial Statement Information | Other Financial Statement Information Available-for-sale Securities Available-for-sale securities at June 30, 2022 consisted of the following (in thousands): Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Fair Value Measurement Cash equivalents: Money market funds $ 225,176 $ — $ — $ 225,176 Level 1 Marketable securities: Corporate debt securities 161,622 — (2,733) 158,889 Level 2 Government debt securities 51,746 9 (883) 50,872 Level 2 Asset-backed securities 15,907 — (122) 15,785 Level 2 Total available-for-sale securities $ 454,451 $ 9 $ (3,738) $ 450,722 As of December 31, 2021, the Company held $548.0 million in money market funds with no unrealized gains or losses as of this date. The contractual maturities of marketable securities as of June 30, 2022 were as follows (in thousands): Amortized Cost Fair Value Due in one year or less $ 97,324 $ 95,930 Due after one year to five years 131,951 129,616 Total marketable securities $ 229,275 $ 225,546 Inventory Inventory was comprised of the following (in thousands): June 30, December 31, Purchased materials $ 28,291 $ 31,954 Work in progress 21,846 14,052 Finished goods 20,509 13,960 Inventory $ 70,646 $ 59,966 Accrued Compensation and Related Benefits Accrued compensation and related benefits were comprised of the following as of the dates indicated (in thousands): June 30, December 31, Accrued payroll and related costs $ 3,450 $ 3,978 Employee stock purchase program liability 754 1,693 Accrued bonus 11,294 16,558 Accrued commissions 4,055 3,417 Accrued acquisition-related compensation 2,156 4,430 Accrued vacation 1,403 1,172 Other 393 378 Accrued compensation and related benefits $ 23,505 $ 31,626 Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities were comprised of the following as of the dates indicated (in thousands): June 30, December 31, Accrued legal and related costs $ 2,313 $ 2,425 Accrued license fee 6,008 6,214 Accrued royalties for licensed technologies 4,166 4,415 Accrued property and equipment 25,833 15,361 Accrued professional services 4,332 8,593 Product warranties 1,430 994 Customer deposits 888 954 Taxes payable 1,445 4,622 Accrued lab supplies 1,884 2,056 Other 4,923 5,275 Accrued expenses and other current liabilities $ 53,222 $ 50,909 Product Warranties Changes in the reserve for product warranties were as follows for the periods indicated (in thousands): Six Months Ended 2022 2021 Beginning of period $ 994 $ 399 Amounts charged to cost of revenue 1,983 1,242 Repairs and replacements (1,547) (1,064) End of period $ 1,430 $ 577 Revenue and Deferred Revenue As of June 30, 2022, the aggregate amount of remaining performance obligations related to separately sold extended warranty service agreements, or allocated amounts for extended warranty service agreements bundled with sales of instruments, was $9.3 million, of which approximately $6.4 million is expected to be recognized to revenue in the next 12 months, with the remainder thereafter. The contract liabilities of $9.3 million and $7.7 million as of June 30, 2022 and December 31, 2021, respectively, consisted of deferred revenue related to extended warranty service agreements. Revenue recorded during the three and six months ended June 30, 2022 and 2021 included $1.3 million and $2.9 million, and, $1.1 million and $2.5 million, respectively, of previously deferred revenue that was included in contract liabilities as of December 31, 2021 and December 31, 2020. The following table represents revenue by source for the periods indicated (in thousands): Three Months Ended Six Months Ended 2022 2021 2022 2021 Instruments $ 14,736 $ 16,877 $ 29,165 $ 28,002 Consumables 97,934 97,146 195,884 190,225 Services 1,939 1,819 4,056 3,436 Total revenue $ 114,609 $ 115,842 $ 229,105 $ 221,663 The following table presents revenue by geography based on the location of the customer for the periods indicated (in thousands): Three Months Ended Six Months Ended 2022 2021 2022 2021 United States $ 69,373 $ 64,001 $ 126,814 $ 114,307 Europe, Middle East and Africa 25,608 28,772 46,140 47,942 China 9,087 12,874 29,847 36,514 Asia-Pacific (excluding China) 9,026 8,431 22,543 19,635 North America (excluding United States) 1,515 1,764 3,761 3,265 Total revenue $ 114,609 $ 115,842 $ 229,105 $ 221,663 |