|
Marketable Securities - Continuous Unrealized Loss Position (Details) $成千上万 |
Sep. 30, 2016
USD ($) |
|||
|---|---|---|---|---|
| Investments in an Unrealized Loss Position | ||||
| Fair Value | $ 559,207 | |||
| Gross Unrealized Losses, less than 12 months | (842) | [1] | ||
| 公司债务证券 | ||||
| Investments in an Unrealized Loss Position | ||||
| Fair Value | 372,827 | |||
| Gross Unrealized Losses, less than 12 months | （597） | [1] | ||
| 美国政府机构证券 | ||||
| Investments in an Unrealized Loss Position | ||||
| Fair Value | 126,547 | |||
| Gross Unrealized Losses, less than 12 months | （149） | [1] | ||
| 美国国库券 | ||||
| Investments in an Unrealized Loss Position | ||||
| Fair Value | 44,791 | |||
| Gross Unrealized Losses, less than 12 months | (92) | [1] | ||
| Sovereign securities | ||||
| Investments in an Unrealized Loss Position | ||||
| Fair Value | 13,036 | |||
| Gross Unrealized Losses, less than 12 months | (4) | [1] | ||
| 市政证券 | ||||
| Investments in an Unrealized Loss Position | ||||
| Fair Value | 2,006 | |||
| Gross Unrealized Losses, less than 12 months | $ 0 | [1] | ||
|
||||