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Investments
12 Months Ended
Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]  
Investments Investments
Marketable debt securities held by the Company are classified as available-for-sale pursuant to ASC 320, Investments - Debt and Equity Securities, and carried at fair value in the accompanying condensed consolidated balance sheets.
The following table summarizes the gross unrealized gains and losses on the Company’s marketable securities:

December 31,
2023
Gross Unrealized
Amortized CostGainsLossesCredit LossesEstimated Fair Value
U.S. government agency bonds$19,651 $157 $— $— $19,808 
$19,651 $157 $— $— $19,808 
Classified as:
Short-term investments$19,808 
As of December 31, 2023, there was $0.2 million of interest receivable related to the outstanding debt securities held by the Company.