Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities (Tables)

v3.21.2
Marketable Securities (Tables)
9 Months Ended
Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]  
Marketable securities The following table summarizes the Company's investments in marketable securities:
September 30, 2021
Maturity Gross Amortized Cost Total Unrealized Gains Total Unrealized Losses Fair Value
Short-term marketable securities
Commercial paper Within one year $ 141,157  $ 13  $ (13) $ 141,157 
Corporate bonds Within one year 160,942  39  (49) 160,932 
Municipal bonds Within one year 5,800  —  5,805 
Total $ 307,899  $ 57  $ (62) $ 307,894 
Long-term marketable securities
Corporate bonds Within one - five years $ 142,395  $ 17  $ (82) $ 142,330 
Municipal bonds Within one - five years 8,692  —  (7) 8,685 
Total $ 151,087  $ 17  $ (89) $ 151,015 

December 31, 2020
Maturity Gross Amortized Cost Total Unrealized Gains Total Unrealized Losses Fair Value
Short-term marketable securities
Commercial paper Within one year $ 48,685  $ 31  $ (2) $ 48,714 
Corporate bonds Within one year 78,282  45  (18) 78,309 
U.S. Treasury bills Within one year 19,995  —  19,997 
Municipal bonds Within one year 2,500  —  2,501 
Total $ 149,462  $ 79  $ (20) $ 149,521 
Long-term marketable securities
Corporate bonds Within one - five years $ 91,694  $ 35  $ (40) $ 91,689 
U.S. Treasury bills Within one - five years 25,000  (5) 24,996 
Municipal bonds Within one - five years 3,335  —  3,337 
Total $ 120,029  $ 38  $ (45) $ 120,022