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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2022
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements The following tables summarize our assets and liabilities that are measured at fair value on a recurring basis, by level, within the fair value hierarchy (in thousands):
| As of December 31, 2022
| Level 1 |  | Level 2 |  | Level 3
Available-for-sale debt securities | $ | — |  |  | $ | — |  |  | $ | 995 |
Money market fund | 130,215 |  |  | — |  |  | — |
Total assets | $ | 130,215 |  |  | $ | — |  |  | $ | 995 |
Contingent consideration | — |  |  | — |  |  | 836 |
Total liabilities | $ | — |  |  | $ | — |  |  | $ | 836 |
| As of December 31, 2021
| Level 1 |  | Level 2 |  | Level 3
Available-for-sale debt securities | $ | — |  |  | $ | — |  |  | $ | 1,122 |
Money market fund | 30,215 |  |  | — |  |  | — |
Total assets | $ | 30,215 |  |  | $ | — |  |  | $ | 1,122 |
Contingent consideration | — |  |  | — |  |  | 750 |
Total liabilities | $ | — |  |  | $ | — |  |  | $ | 750 |
There was no change in the fair value of the contingent consideration from our acquisition of UAS and Pure for the years ended December 31, 2022 and 2021. Our available-for-sale debt securities measured using Level 3 inputs have the following activity (in thousands):
| As of December 31,
| 2022 |  | 2021 |  | 2020
Beginning balance | $ | 1,122 |  |  | $ | 1,050 |  |  | $ | 5,528 |
Change in fair value | (127) |  |  | 72 |  |  | 434 |
Other-than-temporary impairment | — |  |  | — |  |  | (4,912) |
Ending balance | $ | 995 |  |  | $ | 1,122 |  |  | $ | 1,050 |
Our financial guarantee measured using Level 3 inputs has the following activity (in thousands):
| As of December 31,
| 2021 |  | 2020
Beginning balance | $ | 150 |  |  | $ | 1,900 |
Change in fair value | — |  |  | (1,750) |
Gain on cancellation of financial guarantee | (150) |  |  | — |
Ending balance | $ | — |  |  | $ | 150 |

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- References No definition available. + Details
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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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