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Fair Value of Financial Instruments (Tables)
3 Months Ended
Mar. 31, 2020
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, 2020
Quoted Prices in Active Markets for Identical AssetsSignificant Other Observable InputsSignificant Unobservable Inputs
TotalLevel 1Level 2Level 3
Assets:
Money market funds$74,483  $74,483  $—  $—  
Government-sponsored enterprises13,748  —  13,748  —  
Corporate debt securities75,040  —  75,040  —  
Total assets measured at fair value(a)
$163,271  $74,483  $88,788  $—  

Fair Value Measurements at December 31, 2019
Quoted Prices in Active Markets for Identical AssetsSignificant Other Observable InputsSignificant Unobservable Inputs
TotalLevel 1Level 2Level 3
Assets:
Money market funds$46,149  $46,149  $—  $—  
Government-sponsored enterprises13,222  —  13,222  —  
Corporate debt securities103,135  —  103,135  —  
Total assets measured at fair value(b)
$162,506  $46,149  $116,357  $—  
(a) Total assets measured at fair value at March 31, 2020 includes approximately $85.5 million reported in cash and cash equivalents on the consolidated balance sheet.
(b) Total assets measured at fair value at December 31, 2019 includes approximately $73.2 million reported in cash and cash equivalents on the consolidated balance sheet.