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Cash, Cash Equivalents and Short-Term Investments (Tables) | 9 Months Ended
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Sep. 30, 2019
Cash, Cash Equivalents, and Short-term Investments [Abstract] |
Summary of Cash and Cash Equivalents | Cash equivalents include items almost as liquid as cash, such as certificates of deposit and time deposits with maturity periods of three months or less when purchased.
| September 30, 2019 |  | December 31, 2018
| Unaudited |  | Audited
Cash | $ | 5,851 |  |  | $ | 9,197 |
Money market funds | 202,183 |  |  | 131,425 |
Total cash and cash equivalents | $ | 208,034 |  |  | $ | 140,622 |
Summary of Amortized Cost and Recorded Basis of T-bills in Short-Term Investments | The Company invests in marketable U.S. Treasury Bills (“T-bills”) that are classified as held-to-maturity securities. The amortized cost and recorded basis of the T-bills are presented as short-term investments.
| September 30, 2019 |  | December 31, 2018
| Unaudited |  | Audited
Short-term investments | $ | 104,565 |  |  | $ | 105,256 |

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- Definition Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 + Details
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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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