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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Schedule of Assets Measured on Recurring Basis The following table presents information about our assets that are measured at fair value on a recurring basis using the above input categories (in thousands):
Fair Value Measurements as of December 31, 2021Fair Value Measurements as of December 31, 2020
DescriptionTotalLevel 1Level 2TotalLevel 1Level 2
Money market funds$259,754 $259,754 $— $265,578 $265,578 $— 
Commercial paper10,479 — 10,479 21,489 — 21,489 
U.S. treasury debt securities54,605 — 54,605 51,809 — 51,809 
Corporate debt securities161,461 — 161,461 147,882 — 147,882 
Foreign government debt securities5,015 — 5,015 1,027 — 1,027 
$491,314 $259,754 $231,560 $487,785 $265,578 $222,207 
Included in cash and cash equivalents$261,254 $280,578 
Included in marketable securities$230,060 $207,207