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Fair Value Measurements and Fair Value of Financial Instruments
6 Months Ended
Jun. 30, 2022
Fair Value Disclosures [Abstract]  
Fair Value Measurements and Fair Value of Financial Instruments FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS
The following tables set forth the fair value of the Company’s financial assets that were measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands).
June 30, 2022
Level 1Level 2Level 3Total
Assets:
Cash equivalents:
Money market funds
$56,320 $— $— $56,320 
Commercial paper
— 9,486 — 9,486 
Corporate debt securities
— 7,014 — 7,014 
Total cash equivalents
56,320 16,500 — 72,820 
Investments:
U.S. Treasury securities— 262,605 — 262,605 
Commercial paper
— 52,128 — 52,128 
Corporate debt securities
— 62,349 — 62,349 
Total investments
— 377,082 — 377,082 
Total assets measured at fair value
$56,320 $393,582 $— $449,902 
December 31, 2021
Level 1Level 2Level 3Total
Assets:
Cash equivalents:
Money market funds
$232,813 $— $— $232,813 
Total cash equivalents232,813 — — 232,813 
Investments:
U.S. Treasury securities— 260,447 — 260,447 
Total investments— 260,447 — 260,447 
Total assets measured at fair value
$232,813 $260,447 $— $493,260 

There were no financial liabilities measured at fair value. The Company classifies money market funds within Level 1 of the fair value hierarchy because they are valued using quoted market prices. The Company classifies its investments in U.S. Treasury securities (Treasury bills, Treasury notes, and Treasury bonds) as Level 2 instruments and obtains fair value from an independent pricing service, which may use quoted market prices for identical or comparable instruments or model-driven valuations using observable market data or inputs corroborated by observable market data.
The carrying amount of the Company’s accounts receivable, other receivables, prepaid expenses and other current assets, accounts payable, and accrued expenses approximate fair value due to their short maturities.
The following is a summary of the Company’s cash equivalents and investments and the gross unrealized holding gains and losses (in thousands):
June 30, 2022
Amortized Cost BasisUnrealized GainsUnrealized LossesFair Value
Assets:
Cash equivalents:
Money market funds
$56,320 $— $— $56,320 
Commercial paper
9,488 — (2)9,486 
Corporate debt securities
7,019 — (5)7,014 
Total cash equivalents72,827 — (7)72,820 
Investments:
U.S. Treasury securities265,396 — (2,791)262,605 
Commercial paper
52,179 (57)52,128 
Corporate debt securities
62,613 — (264)62,349 
Total investments380,188 (3,112)377,082 
Total assets measured at fair value
$453,015 $$(3,119)$449,902 
December 31, 2021
Amortized Cost BasisUnrealized GainsUnrealized LossesFair Value
Assets:
Cash equivalents:
Money market funds
$232,813 $— $— $232,813 
Total cash equivalents
232,813 — — 232,813 
Investments:
U.S. Treasury securities260,983 — (536)260,447 
Total investments
260,983 — (536)260,447 
Total assets measured at fair value
$493,796 $— $(536)$493,260 
As of June 30, 2022 and December 31, 2021, unrealized losses on available-for-sale investments are not attributable to credit risk and are considered to be temporary. No investments have been in a continuous unrealized loss position for 12 months or longer. The Company believes it is more likely than not that investments in an unrealized loss position will be held until maturity or the recovery of the cost basis of the investment. To date, the Company has not recorded any impairment charges on marketable securities related to other-than-temporary declines in market value. As of June 30, 2022, $4.9 million of available-for-sale investments had remaining maturities between one and two years. The remainder of the available-for-sale investments have a remaining maturity of one year or less. As of June 30, 2022 and December 31, 2021, the Company recorded $0.6 million and $0.3 million of accrued interest, respectively, related to its available-for-sale investments as a component of other receivables on the condensed consolidated balance sheets.