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Fair Value of Financial Instruments (Tables)
3 Months Ended
Mar. 31, 2024
Fair Value Disclosures [Abstract]  
Financial Assets Measured at Fair Value on a Recurring Basis
Financial assets measured at fair value on a recurring basis were as follows (in thousands):
Fair Value Measurements at March 31, 2024
TotalLevel 1Level 2
Assets:
Money market funds$63,964 $63,964 $— 
U.S. Treasury securities30,105 — 30,105 
Government-sponsored enterprises31,331 — 31,331 
Corporate debt securities42,446 — 42,446 
Total assets measured at fair value(a)
$167,846 $63,964 $103,882 
Fair Value Measurements at December 31, 2023
TotalLevel 1Level 2
Assets:
Money market funds$91,665 $91,665 $— 
U.S. Treasury securities31,179 — 31,179 
Government-sponsored enterprises45,043 — 45,043 
Corporate debt securities52,627 — 52,627 
Total assets measured at fair value(b)
$220,514 $91,665 $128,849 
(a) Total assets measured at fair value at March 31, 2024 includes approximately $64.0 million reported in cash and cash equivalents on the consolidated balance sheet.
(b) Total assets measured at fair value at December 31, 2023 includes approximately $91.7 million reported in cash and cash equivalents on the consolidated balance sheet.