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Fair Value of Financial Instruments
3 Months Ended
Mar. 31, 2023
Fair Value of Financial Instruments  
Fair Value of Financial Instruments

7. Fair Value of Financial Instruments

Disclosures of fair value information about financial instruments are required, whether or not recognized in the balance sheet, for financial instruments with respect to which it is practicable to estimate that value. Fair value measurements and disclosures describe the fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value, as follows:

Level 1 inputs:

Quoted prices (unadjusted) in active markets for identical assets or liabilities

Level 2 inputs:

Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly

Level 3 inputs:

Unobservable inputs that reflect the Company’s own assumptions about the assumptions market participants would use in pricing the asset or liability

Transfers are calculated on values as of the transfer date. There were no transfers between Levels 1, 2 and 3 during the three months ended March 31, 2023 and 2022.

The following table presents the Company’s financial instruments carried at fair value using the lowest level input applicable to each financial instrument at March 31, 2023 and December 31, 2022:

Significant

Quoted Prices

other

Significant

in active

observable

unobservable

markets

inputs

inputs

    

Total

    

(Level 1)

    

(Level 2)

    

(Level 3)

March 31, 2023

Money market funds, included in cash equivalents

$

122,554

$

122,554

$

$

December 31, 2022

Money market funds, included in cash equivalents

$

172,590

$

172,590

$

$

The Company’s cash equivalents, which consist of money market funds, are measured at fair value on a recurring basis

using quoted market prices. Accordingly, these securities are categorized as Level 1.

Assets and Liabilities Not Carried at Fair Value

As of March 31, 2023, the fair value of the Company's 2.625% convertible senior notes due in 2026 was $28,656 and the fair value of the Company's 2.875% convertible senior notes due in 2029 was $216,505, which were estimated utilizing market quotations, and are considered Level 2.

The Company’s term notes fall into the Level 2 category within the fair value level hierarchy and the fair value was

determined using quoted prices for similar liabilities in active markets, as well as inputs that are observable for the liability (other than quoted prices), such as interest rates that are observable at commonly quoted intervals. As of March 31, 2023, the outstanding principal balance of the term notes of $550,000 reasonably approximated the estimated fair value.

As of March 31, 2023, and December 31, 2022, the carrying amounts of cash and cash equivalents, accounts receivable, prepaid expenses and other current assets, accounts payable, accrued expenses, and accrued rebates, returns and discounts reasonably approximated their estimated fair values.