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Investments
6 Months Ended
Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Investments Investments
The following table represents the Company’s available for sale investments by major security type (amounts in thousands):
June 30, 2023
Amortized
Cost
Gross Unrealized LossTotal Fair Value
Investments:
U.S. Treasury securities$45,353 $(74)$45,279 
Total investments$45,353 $(74)$45,279 
December 31, 2022
Amortized
Cost
Gross Unrealized LossTotal Fair Value
Investments:
U.S. Treasury securities$114,778 $(877)$113,901 
Total investments$114,778 $(877)$113,901 
 
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 0.11 years as of June 30, 2023.