XML 62 R30.htm IDEA: XBRL DOCUMENT v3.20.4
Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]  
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
The following table sets forth the amortized cost, gross unrealized gains, gross unrealized losses and fair values of the Company's marketable securities accounted for as available-for-sale securities as of or for the year ended December 31, 2020. There were no such amounts as of or for the year ended December 31, 2019.

December 31, 2020
(in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
Financial Assets:
Short-term marketable securities:
     U.S. Treasury securities$21,357 $1 $(18)$21,340 
     Commercial paper14,543 — — 14,543 
     Asset-backed securities14,546 — (8)14,538 
     Corporate bonds17,144 — (19)17,125 
Total$67,590 $1 $(45)$67,546 
Investments Classified by Contractual Maturity Date The following table sets forth the fair value of available-for-sale marketable securities by contractual maturity at December 31, 2020. There were no such amounts as of or for the year ended December 31, 2019.
December 31, 2020
(in thousands)One Year or LessOver One Year Through Five YearsOver Five YearsTotal
Financial Assets:
Marketable Securities:
     U.S. Treasury securities$6,075 $15,265 $— $21,340 
     Commercial paper14,543 — — 14,543 
     Asset-backed securities560 13,978 — 14,538 
     Corporate bonds5,863 11,262 — 17,125 
Total$27,041 $40,505 $— $67,546 
Fair Value, Assets Measured on Recurring Basis
The following table sets forth the Company's cash equivalents and marketable securities accounted for as available-for-sale securities that were measured at fair value on a recurring basis based on the fair value hierarchy as of December 31, 2020. As of December 31, 2019, the Company had money market fund cash equivalents (Level 1) in the amount of $163.8 million.

December 31, 2020
(in thousands)Level 1Level 2Level 3Total
Financial Assets:
Cash equivalents:
     Money market funds$209,141 $— $— $209,141 
     U.S. Treasury securities1,000 — — 1,000 
     Commercial paper— 3,999 — 3,999 
Marketable securities:
     U.S. Treasury securities21,340 — — 21,340 
     Commercial paper— 14,543 — 14,543 
     Asset-backed securities— 14,538 — 14,538 
     Corporate bonds— 17,125 — 17,125 
Total$231,481 $50,205 $— $281,686