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Marketable Securities
 9 Months Ended
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities Marketable Securities
The following tables summarize the Company's marketable debt securities (in thousands):
September 30, 2023
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair
Value
U.S. Treasury securities$26,050 $— $(12)$26,038 
Government-sponsored enterprises83,671 40 (16)83,695 
Corporate debt securities56,847 — (46)56,801 
Total$166,568 $40 $(74)$166,534 
December 31, 2022
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair
Value
Government-sponsored enterprises$32,812 $5 $(7)$32,810 
Corporate debt securities12,655 1 (4)12,652 
Total$45,467 $6 $(11)$45,462 
All available-for-sale marketable debt securities held as of September 30, 2023 and December 31, 2022 had contractual maturities of less than one year. All of the Company's available-for-sale marketable debt securities in an unrealized loss position as of September 30, 2023 and December 31, 2022 were in a loss position for less than twelve months. Unrealized losses on available-for-sale debt securities as of September 30, 2023 and December 31, 2022 were not significant and were primarily due to changes in interest rates, including market credit spreads, and not due to increased credit risks associated with specific securities. Accordingly, no allowance for credit losses related to the Company's available-for-sale debt securities was recorded for any periods presented. The Company does not intend to sell these investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost bases, which may be at maturity.