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Marketable Securities
12 Months Ended
Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities Marketable SecuritiesThe following is a summary of the Company's investment portfolio as of December 31, 2022 and 2021 (in thousands):
As of December 31, 2022
Gross UnrealizedEstimated
CostGainsLossesFair Value
Available-for-sale securities:
Corporate debt securities$35,042 $— $(163)$34,879 
Debt securities issued by U.S. government agencies4,005 — (10)3,995 
Total securities with a maturity of one year or less$39,047 $— $(173)$38,874 
Total available-for-sale securities$39,047 $— $(173)$38,874 

As of December 31, 2021
Gross UnrealizedEstimated
CostGainsLossesFair Value
Available-for-sale securities:
Corporate debt securities$52,214 $— $(31)$52,183 
Commercial paper34,993 — — 34,993 
Debt securities issued by U.S. government agencies12,111 — (8)12,103 
Other debt securities6,398 — 6,399 
Total securities with a maturity of one year or less$105,716 $$(39)$105,678 
Corporate debt securities31,667 — (138)31,529 
Total securities with a maturity of one to two years$31,667 $— $(138)$31,529 
Total available-for-sale securities$137,383 $$(177)$137,207 
As of December 31, 2022, the Company had 7 securities with a total fair market value of $38.9 million in an unrealized loss position. The Company believes that any unrealized losses associated with the decline in value of its securities is temporary and is primarily related to the change in market interest rates since purchase, and believes that it is more likely than not that it will be able to hold its debt securities to maturity. Therefore, the Company anticipates a full recovery of the amortized cost basis of its debt securities at maturity and an allowance for credit losses was not recognized.
Securities are evaluated for impairment at the end of each reporting period. The Company did not record any impairment related to its available-for-sale securities during the years ended December 31, 2022 and 2021.