XML 21 R11.htm IDEA: XBRL DOCUMENT
v3.20.2

Marketable Securities | 9 Months Ended
--- | ---
Sep. 30, 2020
Investments Debt And Equity Securities [Abstract] |
Marketable Securities | 2. Marketable Securities A summary of the Company’s cash equivalents and marketable securities, which are recorded at fair value (and do not include $125.7 million of cash at September 30, 2020) is shown below (in thousands):
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 896,690 |  |  | $ | — |  |  | $ | — |  |  | $ | 896,690 |
Corporate debt securities |  |  | 6,505 |  |  |  | — |  |  |  | (1 | ) |  |  | 6,504 |
Certificates of deposit |  |  | 4,012 |  |  |  | — |  |  |  | — |  |  |  | 4,012 |
Commercial paper |  |  | 8,497 |  |  |  | — |  |  |  | — |  |  |  | 8,497 |
Total cash equivalents |  |  | 915,704 |  |  |  | — |  |  |  | (1 | ) |  |  | 915,703 |
Marketable securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  |  | 39,978 |  |  |  | 2 |  |  |  | — |  |  |  | 39,980 |
Corporate debt securities |  |  | 182,716 |  |  |  | 9 |  |  |  | (154 | ) |  |  | 182,571 |
Certificates of deposit |  |  | 9,153 |  |  |  | — |  |  |  | — |  |  |  | 9,153 |
Government-sponsored enterprise securities |  |  | 6,772 |  |  |  | — |  |  |  | — |  |  |  | 6,772 |
Commercial paper |  |  | 86,097 |  |  |  | — |  |  |  | — |  |  |  | 86,097 |
Total marketable securities |  |  | 324,716 |  |  |  | 11 |  |  |  | (154 | ) |  |  | 324,573 |
Total cash equivalents and marketable securities |  | $ | 1,240,420 |  |  | $ | 11 |  |  | $ | (155 | ) |  | $ | 1,240,276 |
The amortized cost of all cash equivalents as of December 31, 2019 approximated fair value and the Company did not hold any marketable securities as of December 31, 2019. As of September 30, 2020, the aggregate fair value of marketable securities that were in an unrealized loss position for less than twelve months was $107.9 million. As of September 30, 2020, no marketable securities were in an unrealized loss position for more than twelve months. The Company has recorded a net unrealized loss of $0.1 million during the three and nine months ended September 30, 2020 related to its debt securities, which is included in comprehensive income (loss) on the condensed consolidated statements of operations and comprehensive loss. The Company determined that there was no material change in the credit risk of the above investments. As such, an allowance for credit losses was not recognized. As of September 30, 2020, the Company does not intend to sell such securities and it is not more likely than not that the Company will be required to sell the securities before recovery of their amortized cost bases. No available-for-sale debt securities held as of September 30, 2020 had remaining maturities greater than two years.

X
- Definition The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
Name: | us-gaap_CashCashEquivalentsAndMarketableSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration