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MARKETABLE SECURITIES - Contractual Maturities (Details) - USD ($) $ in Thousands |
Sep. 30, 2020 |
君。30,2020 |
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| 摊余成本 | ||
| 在一年内到期 | $ 498,336 | $ 415,915 |
| 一年后到了三年 | 325,659 | 325,459 |
| Marketable securities, Amortized Cost | 823,995 | 741,374 |
| Fair Value | ||
| 在一年内到期 | 500,622 | 418,169 |
| 一年后到了三年 | 327,011 | 327,894. |
| 市场证券，公允价值 | 827,633美元 | $ 746,063 |
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-Definition
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Three Years, Amortized Cost 无定义可用。
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-Definition
债务证券，可供出售，成熟，分配和单一成熟日期，之后一到三年，公允价值 无定义可用。
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-Definition
Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-References
无定义可用。
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-References
无定义可用。
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-Definition
摊销投资成本在公允价值中以公允价值计量，在其他综合收益（可供出售）中公允价值变动（可供出售），单一成熟日期并在没有单一成熟日期的情况下分配，在本财政年度后下一财会成熟。在从当前财务状况日期（滚动方法）报告临时期间时，不包括临时和年度期间。 参考文献1：http：//fasb.org/us-gaap/role/ref/legacyref
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-Definition
Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Definition
债务安全投资金额以公允价值计量，随着其他综合收益确认的公允价值变动（可供出售）。 Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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