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Investments
 3 Months Ended
Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]  
Investments Investments
The following table represents the Company’s available-for-sale investments by major security type (in thousands):
March 31, 2024
Amortized
Cost		Gross Unrealized
Loss
Total
Fair Value
Investments:
U.S. government securities$38,642 $(14)$38,628 
Cash equivalents:
U.S. government securities34,245 — 34,245 
Total level 1 debt securities$72,887 $(14)$72,873 

December 31, 2023
Amortized
Cost
Gross Unrealized
Gain/(Loss)
Total
Fair Value
Investments:
U.S. government securities$4,998 $1 $4,999 
Cash equivalents:
U.S. government securities39,657 3 39,660 
Total level 1 debt securities$44,655 $4 $44,659 
 
The Company’s investment instruments and cash and cash equivalents are classified using Level 1 inputs within the fair value hierarchy and are valued using quoted market prices, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency. Debt securities have a weighted-average maturity of 0.19 years as of March 31, 2024.