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Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2024
Fair Value Disclosures [Abstract]  
Schedule of valuation of the company's investments and financial instruments that are measured at fair value on a recurring basis
The following table summarizes the valuation of the Company’s financial instruments that are measured at fair value on a recurring basis:

 March 31, 2024December 31, 2023
  Fair value measurement category Fair value measurement category
(In thousands)TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3
Assets:
Money market funds$36,617 $36,617 $— $— $34,672 $34,672 $— $— 
Commercial paper (a)
8,873 — 8,873 — 4,876 — 4,876 — 
Corporate notes56,606 — 56,606 — 47,159 — 47,159 — 
U.S. government agency bonds (a)
10,684 — 10,684 — 13,971 — 13,971 — 
U.S. government securities (a)
23,763 — 23,763 — 24,874 — 24,874 — 
$136,543 $36,617 $99,926 $— $125,552 $34,672 $90,880 $— 

(a) Approximately $1.5 million of commercial paper and $21.3 million of U.S. government securities had an original maturity of 90 days or less and is recorded as a cash equivalent as of March 31, 2024. Approximately $23.9 million of U.S. government securities and $1.2 million of commercial paper had an original maturity of 90 days or less and is recorded as a cash equivalent as of December 31, 2023.