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Marketable Securities (Tables)
6 Months Ended
Jun. 30, 2022
Marketable Securities [Abstract]  
Summary of Marketable Securities
Marketable securities consisted of the following as of the periods presented (in thousands):

June 30, 2022
Amortized Cost
Gross Unrealized GainsGross Unrealized Losses
Fair Value
Marketable Securities
U.S. Treasury securities$207,869 $— $(1,942)$205,927 
Certificates of deposit17,716 — (74)17,642 
Corporate debt securities27,801 — (262)27,539 
Commercial paper13,524 — (80)13,444 
Asset-backed securities404 — (1)403 
Total marketable securities$267,314 $— $(2,359)$264,955 
    
December 31, 2021
Amortized Cost
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value
Marketable Securities
U.S. Treasury securities$157,681 $— $(404)$157,277 
Certificates of deposit6,495 — (5)6,490 
Corporate debt securities36,422 — (95)36,327 
Commercial paper11,624 (6)11,620 
Asset-backed securities5,901 (7)5,895 
Total marketable securities$218,123 $$(517)$217,609 
Summary of Marketable Securities in an Unrealized Loss Position
Marketable securities in an unrealized loss position for less than 12 months consisted of the following as of the periods presented (in thousands):
June 30, 2022December 31, 2021
Fair ValueGross Unrealized LossFair ValueGross Unrealized Loss
U.S. Treasury securities$205,927 $(1,942)$143,590 $(404)
Certificates of deposit15,139 (74)6,490 (5)
Corporate debt securities27,539 (262)36,327 (95)
Commercial paper13,444 (80)6,984 (6)
Asset-backed securities403 (1)4,967 (7)
Total$262,452 $(2,359)$198,358 $(517)
Summary of Remaining Contractual Maturities of Marketable Securities
The following summarizes the remaining contractual maturities of the Company’s marketable securities as of June 30, 2022 (in thousands):
Fair Value
One year or less$259,168 
Over one year through five years5,787 
Total marketable securities$264,955