XML 32 R21.htm IDEA: XBRL DOCUMENT v3.21.2
Fair Value Measurements (Tables)
 6 Months Ended
Jun. 30, 2021
Fair Value Disclosures [Abstract]  
Summary of Fair Value of Financial Assets and Liabilities Measured or Disclosed on a Recurring Basis
The following table sets forth the fair value of our financial assets and liabilities that are measured or disclosed on a recurring basis by level within the fair value hierarchy (in thousands):
June 30, 2021
Total
Fair Value		Level 1Level 2Level 3
Assets:
Money market funds$84,650 $84,650 $— $— 
Commercial paper63,975 — 63,975 — 
Corporate bonds16,964 — 16,964 — 
Asset-backed securities5,375 — 5,375 — 
Total$170,964 $84,650 $86,314 $— 
Liabilities:
Derivative liability for Exit Fee$663 $— $— $663 
Total$663 $— $— $663 

December 31, 2020
Total
Fair Value		Level 1Level 2Level 3
Assets:
Money market funds$88,151 $88,151 $— $— 
Commercial paper62,729 — 62,729 — 
Corporate bonds26,658 — 26,658 — 
U.S. government-sponsored agency bonds9,279 — 9,279 — 
U.S. treasury notes1,000 — 1,000 — 
Total$187,817 $88,151 $99,666 $— 
Liabilities:
Derivative liability for Exit Fee$1,376 $— $— $1,376 
Total$1,376 $— $— $1,376