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Cash, Cash Equivalents and Investments (Tables)
6 Months Ended
Jun. 30, 2021
Cash, Cash Equivalents and Investments [Abstract]  
Summary of Cash, Cash Equivalents and Investments

As of June 30, 2021

Gross

Gross

Amortized

unrealized

unrealized

Fair

Cost

gains

losses

Value

Cash and cash equivalents:

Cash and money market funds

$

263,433

$

$

$

263,433

Commercial paper

193,092

(7)

193,085

U.S. government & agency securities

3,276

3,276

Total cash and cash equivalents

459,801

(7)

459,794

Investments:

Commercial paper

173,929

23

(6)

173,946

Corporate debt securities

13,629

52

13,681

U.S. government & agency securities

497,020

29

(97)

496,952

Total investments

684,578

104

(103)

684,579

Total cash, cash equivalents and investments

$

1,144,379

$

104

$

(110)

$

1,144,373

Short-term restricted cash:

Cash

$

300

$

$

$

300

Long-term restricted cash:

Cash

$

3,000

$

$

$

3,000

As of December 31, 2020

Gross

Gross

Amortized

unrealized

unrealized

Fair

Cost

gains

losses

Value

Cash and cash equivalents:

Cash and money market funds

$

43,040

$

$

$

43,040

Commercial paper

32,538

(1)

32,537

U.S. government & agency securities

170

170

U.S. Treasury security

5,864

5,864

Total cash and cash equivalents

81,612

(1)

81,611

Investments:

Commercial paper

112,648

4

(8)

112,644

Corporate debt securities

17,360

96

17,456

U.S. government & agency securities

107,109

6

(12)

107,103

Total investments

237,117

106

(20)

237,203

Total cash, cash equivalents and investments

$

318,729

$

106

$

(21)

$

318,814

Short-term restricted cash:

Cash

$

836

$

$

$

836

Long-term restricted cash:

Cash

$

3,500

$

$

$

3,500

Summary of Contractual Maturities of Cash Equivalents and Available-for-Sale Investments

Fair Value

Due in one year or less

$

574,297

Due after one year through 5 years

306,643

Total investments

$

880,940