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Fair Value Measurement	9 Months Ended
Sep. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurement	3. Fair Value Measurement We measure our investments based on a fair value hierarchy disclosure framework that prioritizes and ranks the level of market price observability used in measuring assets and liabilities at fair value. Market price observability is affected by a number of factors, including the type of asset or liability and its characteristics. This hierarchy prioritizes the inputs into three broad levels as follows: • Level 1–Quoted prices in active markets for identical instruments. • Level 2–Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets. • Level 3–Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable. Investments with maturities of 90 days or less from the date of purchase are classified as cash equivalents; investments with maturities of greater than 90 days from the date of purchase but less than one year are generally classified as short-term investments; and investments with maturities of one year or greater from the date of purchase are generally classified as long-term investments. Unrealized holding gains and losses are reflected as a net amount in a separate component of shareholders’ equity until realized. For the purposes of computing realized gains and losses, cost is determined on a specific identification basis. At September 30, 2022, our cash and cash equivalents were $183.2 million and $13.9 million, respectively. We had neither short-term investments nor long-term investments at September 30, 2022. Cash equivalents consist of highly liquid money market funds. For money market funds, we use quoted prices from active markets that are classified at Level 1, the highest level of observable input in the disclosure hierarchy framework. We had no investments classified at Level 2 or Level 3 at September 30, 2022.

Fair Value Measurement

9 Months Ended

Sep. 30, 2022

We measure our investments based on a fair value hierarchy disclosure framework that prioritizes and ranks the level of market price observability used in measuring assets and liabilities at fair value. Market price observability is affected by a number of factors, including the type of asset or liability and its characteristics. This hierarchy prioritizes the inputs into three broad levels as follows:

•

Level 1–Quoted prices in active markets for identical instruments.

•

Level 2–Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.

•

Level 3–Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

Investments with maturities of 90 days or less from the date of purchase are classified as cash equivalents; investments with maturities of greater than 90 days from the date of purchase but less than one year are generally classified as short-term investments; and investments with maturities of one year or greater from the date of purchase are generally classified as long-term investments. Unrealized holding gains and losses are reflected as a net amount in a separate component of shareholders’ equity until realized. For the purposes of computing realized gains and losses, cost is determined on a specific identification basis.

At September 30, 2022, our cash and cash equivalents were $183.2 million and $13.9 million, respectively. We had neither short-term investments nor long-term investments at September 30, 2022. Cash equivalents consist of highly liquid money market funds. For money market funds, we use quoted prices from active markets that are classified at Level 1, the highest level of observable input in the disclosure hierarchy framework. We had no investments classified at Level 2 or Level 3 at September 30, 2022.

- 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.

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