v3.20.2
Marketable Securities (Tables)
 9 Months Ended
Sep. 30, 2020
Investments Debt And Equity Securities [Abstract]  
Summary of Available-for-Sale Marketable Securities

The following is a summary of available-for-sale marketable securities, excluding those securities classified within cash and cash equivalents on the condensed consolidated balance sheets as of September 30, 2020 and December 31, 2019 (in thousands):

 

 

 

September 30, 2020

 

 

 

Amortized

Cost

 

 

Unrealized

Gain

 

 

Unrealized

Losses

 

 

Fair

Value

 

Commercial debt securities

 

$

965,398

 

 

$

1,784

 

 

$

(154

)

 

$

967,028

 

Certificates of deposit

 

 

34,225

 

 

 

37

 

 

 

—

 

 

 

34,262

 

U.S. government treasury securities

 

 

169,306

 

 

 

427

 

 

 

(2

)

 

 

169,731

 

Commercial paper

 

 

125,218

 

 

 

30

 

 

 

(8

)

 

 

125,240

 

Marketable securities

 

$

1,294,147

 

 

$

2,278

 

 

$

(164

)

 

$

1,296,261

 

 

 

 

December 31, 2019

 

 

 

Amortized

Cost

 

 

Unrealized

Gain

 

 

Unrealized

Losses

 

 

Fair

Value

 

Commercial debt securities

 

$

80,376

 

 

$

46

 

 

$

(5

)

 

$

80,417

 

U.S. government treasury securities

 

 

72,467

 

 

 

10

 

 

 

(4

)

 

 

72,473

 

Commercial paper

 

 

23,784

 

 

 

—

 

 

 

—

 

 

 

23,784

 

Marketable securities

 

$

176,627

 

 

$

56

 

 

$

(9

)

 

$

176,674

 
Summary of Fair Values of Available-for-Sale Marketable Securities, by Remaining Contractual Maturity

As of September 30, 2020, the fair values of available-for-sale marketable securities, by remaining contractual maturity, were as follows (in thousands):

 

Due within one year

 

$

1,074,047

 

Due in one year through five years

 

 

222,214

 

Total

 

$

1,296,261