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Fair Value of Financial Assets (Tables)
12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]  
Summary of Financial Assets Measured at Fair Value on a Recurring Basis and Level of the Fair Value Hierarchy

The following tables present information about the Company’s financial assets measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values:

 

 

 

Fair Value Measurements as of

December 31, 2020:

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

447,146

 

 

$

 

 

$

 

 

$

447,146

 

Investments:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

US treasury bills

 

 

 

 

 

33,026

 

 

 

 

 

 

33,026

 

US agency securities

 

 

 

 

 

197,389

 

 

 

 

 

 

197,389

 

Total investments

 

 

 

 

 

230,415

 

 

 

 

 

 

230,415

 

Total

 

$

447,146

 

 

$

230,415

 

 

$

 

 

$

677,561

 

 

 

 

Fair Value Measurements as of

December 31, 2019:

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

41,658

 

 

$

 

 

$

 

 

$

41,658

 

Investments:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

US treasury bills

 

 

 

 

 

232,604

 

 

 

 

 

 

232,604

 

US agency securities

 

 

 

 

 

81,258

 

 

 

 

 

 

81,258

 

Total investments

 

 

 

 

 

313,862

 

 

 

 

 

 

313,862

 

Total

 

$

41,658

 

 

$

313,862

 

 

$

 

 

$

355,520